Home / 7,342.26-10,132.31-3,985.08

Finding the Fourth Proportional to 7,342.26, 10,132.31 and 3,985.08

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Solution

The fourth proportional to 7,342.26, 10,132.31 and 3,985.08 is: 5,499.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,342.26 : 10,132.31 = 3,985.08 : x
  2. Step 2: Convert to fraction form
    7,342.26/10,132.31 = 3,985.08/x
  3. Step 3: Cross multiply
    7,342.26x = 10,132.31 × 3,985.08
  4. Step 4: Simplify right side
    7,342.26x = 40,378,046.01
  5. Step 5: Solve for x
    x = 40,378,046.01/7,342.26
  6. Step 6: Final answer
    x = 5,499.40

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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.