Home / 7,572.80-11,356.29-3,412.64

Finding the Fourth Proportional to 7,572.80, 11,356.29 and 3,412.64

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Solution

The fourth proportional to 7,572.80, 11,356.29 and 3,412.64 is: 5,117.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,572.80 : 11,356.29 = 3,412.64 : x
  2. Step 2: Convert to fraction form
    7,572.80/11,356.29 = 3,412.64/x
  3. Step 3: Cross multiply
    7,572.80x = 11,356.29 × 3,412.64
  4. Step 4: Simplify right side
    7,572.80x = 38,754,929.51
  5. Step 5: Solve for x
    x = 38,754,929.51/7,572.80
  6. Step 6: Final answer
    x = 5,117.65

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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.