Home / 5,439.29-7,521.32-4,318.28

Finding the Fourth Proportional to 5,439.29, 7,521.32 and 4,318.28

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Solution

The fourth proportional to 5,439.29, 7,521.32 and 4,318.28 is: 5,971.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.29 : 7,521.32 = 4,318.28 : x
  2. Step 2: Convert to fraction form
    5,439.29/7,521.32 = 4,318.28/x
  3. Step 3: Cross multiply
    5,439.29x = 7,521.32 × 4,318.28
  4. Step 4: Simplify right side
    5,439.29x = 32,479,167.12
  5. Step 5: Solve for x
    x = 32,479,167.12/5,439.29
  6. Step 6: Final answer
    x = 5,971.22

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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.