Home / 7,528.38-10,389.46-4,171.12

Finding the Fourth Proportional to 7,528.38, 10,389.46 and 4,171.12

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Solution

The fourth proportional to 7,528.38, 10,389.46 and 4,171.12 is: 5,756.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,528.38 : 10,389.46 = 4,171.12 : x
  2. Step 2: Convert to fraction form
    7,528.38/10,389.46 = 4,171.12/x
  3. Step 3: Cross multiply
    7,528.38x = 10,389.46 × 4,171.12
  4. Step 4: Simplify right side
    7,528.38x = 43,335,684.40
  5. Step 5: Solve for x
    x = 43,335,684.40/7,528.38
  6. Step 6: Final answer
    x = 5,756.31

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.