Home / 3,130.52-4,695.66-1,281.10

Finding the Fourth Proportional to 3,130.52, 4,695.66 and 1,281.10

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Solution

The fourth proportional to 3,130.52, 4,695.66 and 1,281.10 is: 1,921.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.52 : 4,695.66 = 1,281.10 : x
  2. Step 2: Convert to fraction form
    3,130.52/4,695.66 = 1,281.10/x
  3. Step 3: Cross multiply
    3,130.52x = 4,695.66 × 1,281.10
  4. Step 4: Simplify right side
    3,130.52x = 6,015,610.03
  5. Step 5: Solve for x
    x = 6,015,610.03/3,130.52
  6. Step 6: Final answer
    x = 1,921.60

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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.