Home / 7,210.18-10,815.36-2,280.25

Finding the Fourth Proportional to 7,210.18, 10,815.36 and 2,280.25

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Solution

The fourth proportional to 7,210.18, 10,815.36 and 2,280.25 is: 3,420.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,210.18 : 10,815.36 = 2,280.25 : x
  2. Step 2: Convert to fraction form
    7,210.18/10,815.36 = 2,280.25/x
  3. Step 3: Cross multiply
    7,210.18x = 10,815.36 × 2,280.25
  4. Step 4: Simplify right side
    7,210.18x = 24,661,724.64
  5. Step 5: Solve for x
    x = 24,661,724.64/7,210.18
  6. Step 6: Final answer
    x = 3,420.40

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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.