Home / 4,742.80-7,114.20-3,357.70

Finding the Fourth Proportional to 4,742.80, 7,114.20 and 3,357.70

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Solution

The fourth proportional to 4,742.80, 7,114.20 and 3,357.70 is: 5,036.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,742.80 : 7,114.20 = 3,357.70 : x
  2. Step 2: Convert to fraction form
    4,742.80/7,114.20 = 3,357.70/x
  3. Step 3: Cross multiply
    4,742.80x = 7,114.20 × 3,357.70
  4. Step 4: Simplify right side
    4,742.80x = 23,887,349.34
  5. Step 5: Solve for x
    x = 23,887,349.34/4,742.80
  6. Step 6: Final answer
    x = 5,036.55

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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.