Home / 3,077.12-4,618.08-1,130.72

Finding the Fourth Proportional to 3,077.12, 4,618.08 and 1,130.72

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Solution

The fourth proportional to 3,077.12, 4,618.08 and 1,130.72 is: 1,696.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,077.12 : 4,618.08 = 1,130.72 : x
  2. Step 2: Convert to fraction form
    3,077.12/4,618.08 = 1,130.72/x
  3. Step 3: Cross multiply
    3,077.12x = 4,618.08 × 1,130.72
  4. Step 4: Simplify right side
    3,077.12x = 5,221,755.42
  5. Step 5: Solve for x
    x = 5,221,755.42/3,077.12
  6. Step 6: Final answer
    x = 1,696.96

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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.