Home / 3,127.40-4,689.46-1,152.52

Finding the Fourth Proportional to 3,127.40, 4,689.46 and 1,152.52

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Solution

The fourth proportional to 3,127.40, 4,689.46 and 1,152.52 is: 1,728.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.40 : 4,689.46 = 1,152.52 : x
  2. Step 2: Convert to fraction form
    3,127.40/4,689.46 = 1,152.52/x
  3. Step 3: Cross multiply
    3,127.40x = 4,689.46 × 1,152.52
  4. Step 4: Simplify right side
    3,127.40x = 5,404,696.44
  5. Step 5: Solve for x
    x = 5,404,696.44/3,127.40
  6. Step 6: Final answer
    x = 1,728.18

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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.