Home / 7,572.80-11,360.64-2,641.28

Finding the Fourth Proportional to 7,572.80, 11,360.64 and 2,641.28

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Solution

The fourth proportional to 7,572.80, 11,360.64 and 2,641.28 is: 3,962.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,572.80 : 11,360.64 = 2,641.28 : x
  2. Step 2: Convert to fraction form
    7,572.80/11,360.64 = 2,641.28/x
  3. Step 3: Cross multiply
    7,572.80x = 11,360.64 × 2,641.28
  4. Step 4: Simplify right side
    7,572.80x = 30,006,631.22
  5. Step 5: Solve for x
    x = 30,006,631.22/7,572.80
  6. Step 6: Final answer
    x = 3,962.42

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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.