Home / 5,387.28-7,431.18-3,495.84

Finding the Fourth Proportional to 5,387.28, 7,431.18 and 3,495.84

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Solution

The fourth proportional to 5,387.28, 7,431.18 and 3,495.84 is: 4,822.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,387.28 : 7,431.18 = 3,495.84 : x
  2. Step 2: Convert to fraction form
    5,387.28/7,431.18 = 3,495.84/x
  3. Step 3: Cross multiply
    5,387.28x = 7,431.18 × 3,495.84
  4. Step 4: Simplify right side
    5,387.28x = 25,978,216.29
  5. Step 5: Solve for x
    x = 25,978,216.29/5,387.28
  6. Step 6: Final answer
    x = 4,822.14

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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.