Home / 7,210.50-10,815.68-2,280.14

Finding the Fourth Proportional to 7,210.50, 10,815.68 and 2,280.14

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Solution

The fourth proportional to 7,210.50, 10,815.68 and 2,280.14 is: 3,420.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,210.50 : 10,815.68 = 2,280.14 : x
  2. Step 2: Convert to fraction form
    7,210.50/10,815.68 = 2,280.14/x
  3. Step 3: Cross multiply
    7,210.50x = 10,815.68 × 2,280.14
  4. Step 4: Simplify right side
    7,210.50x = 24,661,264.60
  5. Step 5: Solve for x
    x = 24,661,264.60/7,210.50
  6. Step 6: Final answer
    x = 3,420.19

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.