Home / 7,281.40-10,920.66-3,331.45

Finding the Fourth Proportional to 7,281.40, 10,920.66 and 3,331.45

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Solution

The fourth proportional to 7,281.40, 10,920.66 and 3,331.45 is: 4,996.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,281.40 : 10,920.66 = 3,331.45 : x
  2. Step 2: Convert to fraction form
    7,281.40/10,920.66 = 3,331.45/x
  3. Step 3: Cross multiply
    7,281.40x = 10,920.66 × 3,331.45
  4. Step 4: Simplify right side
    7,281.40x = 36,381,632.76
  5. Step 5: Solve for x
    x = 36,381,632.76/7,281.40
  6. Step 6: Final answer
    x = 4,996.52

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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.