Home / 4,747.02-7,122.96-2,557.86

Finding the Fourth Proportional to 4,747.02, 7,122.96 and 2,557.86

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Solution

The fourth proportional to 4,747.02, 7,122.96 and 2,557.86 is: 3,838.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,747.02 : 7,122.96 = 2,557.86 : x
  2. Step 2: Convert to fraction form
    4,747.02/7,122.96 = 2,557.86/x
  3. Step 3: Cross multiply
    4,747.02x = 7,122.96 × 2,557.86
  4. Step 4: Simplify right side
    4,747.02x = 18,219,534.47
  5. Step 5: Solve for x
    x = 18,219,534.47/4,747.02
  6. Step 6: Final answer
    x = 3,838.10

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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.