Home / 3,512.66-5,272.18-1,870.60

Finding the Fourth Proportional to 3,512.66, 5,272.18 and 1,870.60

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Solution

The fourth proportional to 3,512.66, 5,272.18 and 1,870.60 is: 2,807.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,512.66 : 5,272.18 = 1,870.60 : x
  2. Step 2: Convert to fraction form
    3,512.66/5,272.18 = 1,870.60/x
  3. Step 3: Cross multiply
    3,512.66x = 5,272.18 × 1,870.60
  4. Step 4: Simplify right side
    3,512.66x = 9,862,139.91
  5. Step 5: Solve for x
    x = 9,862,139.91/3,512.66
  6. Step 6: Final answer
    x = 2,807.60

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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.