Home / 5,138.02-7,701.56-2,670.36

Finding the Fourth Proportional to 5,138.02, 7,701.56 and 2,670.36

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Solution

The fourth proportional to 5,138.02, 7,701.56 and 2,670.36 is: 4,002.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,138.02 : 7,701.56 = 2,670.36 : x
  2. Step 2: Convert to fraction form
    5,138.02/7,701.56 = 2,670.36/x
  3. Step 3: Cross multiply
    5,138.02x = 7,701.56 × 2,670.36
  4. Step 4: Simplify right side
    5,138.02x = 20,565,937.76
  5. Step 5: Solve for x
    x = 20,565,937.76/5,138.02
  6. Step 6: Final answer
    x = 4,002.70

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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.