Home / 7,140.07-10,710.50-2,209.32

Finding the Fourth Proportional to 7,140.07, 10,710.50 and 2,209.32

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Solution

The fourth proportional to 7,140.07, 10,710.50 and 2,209.32 is: 3,314.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140.07 : 10,710.50 = 2,209.32 : x
  2. Step 2: Convert to fraction form
    7,140.07/10,710.50 = 2,209.32/x
  3. Step 3: Cross multiply
    7,140.07x = 10,710.50 × 2,209.32
  4. Step 4: Simplify right side
    7,140.07x = 23,662,910.81
  5. Step 5: Solve for x
    x = 23,662,910.81/7,140.07
  6. Step 6: Final answer
    x = 3,314.10

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Double scale
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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.