Home / 3,385.14-5,077.65-1,045.20

Finding the Fourth Proportional to 3,385.14, 5,077.65 and 1,045.20

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Solution

The fourth proportional to 3,385.14, 5,077.65 and 1,045.20 is: 1,567.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,385.14 : 5,077.65 = 1,045.20 : x
  2. Step 2: Convert to fraction form
    3,385.14/5,077.65 = 1,045.20/x
  3. Step 3: Cross multiply
    3,385.14x = 5,077.65 × 1,045.20
  4. Step 4: Simplify right side
    3,385.14x = 5,307,159.78
  5. Step 5: Solve for x
    x = 5,307,159.78/3,385.14
  6. Step 6: Final answer
    x = 1,567.78

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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.