Home / 3,126.52-4,686.90-1,177.40

Finding the Fourth Proportional to 3,126.52, 4,686.90 and 1,177.40

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Solution

The fourth proportional to 3,126.52, 4,686.90 and 1,177.40 is: 1,765.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.52 : 4,686.90 = 1,177.40 : x
  2. Step 2: Convert to fraction form
    3,126.52/4,686.90 = 1,177.40/x
  3. Step 3: Cross multiply
    3,126.52x = 4,686.90 × 1,177.40
  4. Step 4: Simplify right side
    3,126.52x = 5,518,356.06
  5. Step 5: Solve for x
    x = 5,518,356.06/3,126.52
  6. Step 6: Final answer
    x = 1,765.02

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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.