Home / 3,555.20-5,332.40-1,363.88

Finding the Fourth Proportional to 3,555.20, 5,332.40 and 1,363.88

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Solution

The fourth proportional to 3,555.20, 5,332.40 and 1,363.88 is: 2,045.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,555.20 : 5,332.40 = 1,363.88 : x
  2. Step 2: Convert to fraction form
    3,555.20/5,332.40 = 1,363.88/x
  3. Step 3: Cross multiply
    3,555.20x = 5,332.40 × 1,363.88
  4. Step 4: Simplify right side
    3,555.20x = 7,272,753.71
  5. Step 5: Solve for x
    x = 7,272,753.71/3,555.20
  6. Step 6: Final answer
    x = 2,045.67

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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.