Home / 7,284.73-10,920.61-3,387.01

Finding the Fourth Proportional to 7,284.73, 10,920.61 and 3,387.01

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Solution

The fourth proportional to 7,284.73, 10,920.61 and 3,387.01 is: 5,077.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,284.73 : 10,920.61 = 3,387.01 : x
  2. Step 2: Convert to fraction form
    7,284.73/10,920.61 = 3,387.01/x
  3. Step 3: Cross multiply
    7,284.73x = 10,920.61 × 3,387.01
  4. Step 4: Simplify right side
    7,284.73x = 36,988,215.28
  5. Step 5: Solve for x
    x = 36,988,215.28/7,284.73
  6. Step 6: Final answer
    x = 5,077.50

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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.