Home / 3,153.11-4,727.46-1,397.15

Finding the Fourth Proportional to 3,153.11, 4,727.46 and 1,397.15

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Solution

The fourth proportional to 3,153.11, 4,727.46 and 1,397.15 is: 2,094.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,153.11 : 4,727.46 = 1,397.15 : x
  2. Step 2: Convert to fraction form
    3,153.11/4,727.46 = 1,397.15/x
  3. Step 3: Cross multiply
    3,153.11x = 4,727.46 × 1,397.15
  4. Step 4: Simplify right side
    3,153.11x = 6,604,970.74
  5. Step 5: Solve for x
    x = 6,604,970.74/3,153.11
  6. Step 6: Final answer
    x = 2,094.75

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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.