Home / 1,542.20-2,324.40-1,328.36

Finding the Fourth Proportional to 1,542.20, 2,324.40 and 1,328.36

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Solution

The fourth proportional to 1,542.20, 2,324.40 and 1,328.36 is: 2,002.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,542.20 : 2,324.40 = 1,328.36 : x
  2. Step 2: Convert to fraction form
    1,542.20/2,324.40 = 1,328.36/x
  3. Step 3: Cross multiply
    1,542.20x = 2,324.40 × 1,328.36
  4. Step 4: Simplify right side
    1,542.20x = 3,087,639.98
  5. Step 5: Solve for x
    x = 3,087,639.98/1,542.20
  6. Step 6: Final answer
    x = 2,002.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.