Home / 2,328.60-3,214.30-1,542.90

Finding the Fourth Proportional to 2,328.60, 3,214.30 and 1,542.90

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Solution

The fourth proportional to 2,328.60, 3,214.30 and 1,542.90 is: 2,129.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,328.60 : 3,214.30 = 1,542.90 : x
  2. Step 2: Convert to fraction form
    2,328.60/3,214.30 = 1,542.90/x
  3. Step 3: Cross multiply
    2,328.60x = 3,214.30 × 1,542.90
  4. Step 4: Simplify right side
    2,328.60x = 4,959,343.47
  5. Step 5: Solve for x
    x = 4,959,343.47/2,328.60
  6. Step 6: Final answer
    x = 2,129.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.