Home / 3,319.52-4,977.86-1,127.66

Finding the Fourth Proportional to 3,319.52, 4,977.86 and 1,127.66

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Solution

The fourth proportional to 3,319.52, 4,977.86 and 1,127.66 is: 1,691.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,319.52 : 4,977.86 = 1,127.66 : x
  2. Step 2: Convert to fraction form
    3,319.52/4,977.86 = 1,127.66/x
  3. Step 3: Cross multiply
    3,319.52x = 4,977.86 × 1,127.66
  4. Step 4: Simplify right side
    3,319.52x = 5,613,303.08
  5. Step 5: Solve for x
    x = 5,613,303.08/3,319.52
  6. Step 6: Final answer
    x = 1,691.00

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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.