Home / 7,207.24-9,948.90-5,439.28

Finding the Fourth Proportional to 7,207.24, 9,948.90 and 5,439.28

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Solution

The fourth proportional to 7,207.24, 9,948.90 and 5,439.28 is: 7,508.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,207.24 : 9,948.90 = 5,439.28 : x
  2. Step 2: Convert to fraction form
    7,207.24/9,948.90 = 5,439.28/x
  3. Step 3: Cross multiply
    7,207.24x = 9,948.90 × 5,439.28
  4. Step 4: Simplify right side
    7,207.24x = 54,114,852.79
  5. Step 5: Solve for x
    x = 54,114,852.79/7,207.24
  6. Step 6: Final answer
    x = 7,508.40

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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.