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Finding the Fourth Proportional to 7,547.79, 11,321.91 and 3,599.48

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Solution

The fourth proportional to 7,547.79, 11,321.91 and 3,599.48 is: 5,399.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,547.79 : 11,321.91 = 3,599.48 : x
  2. Step 2: Convert to fraction form
    7,547.79/11,321.91 = 3,599.48/x
  3. Step 3: Cross multiply
    7,547.79x = 11,321.91 × 3,599.48
  4. Step 4: Simplify right side
    7,547.79x = 40,752,932.00
  5. Step 5: Solve for x
    x = 40,752,932.00/7,547.79
  6. Step 6: Final answer
    x = 5,399.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.