Home / 1,542.24-2,123.21-1,335.08

Finding the Fourth Proportional to 1,542.24, 2,123.21 and 1,335.08

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Solution

The fourth proportional to 1,542.24, 2,123.21 and 1,335.08 is: 1,838.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,542.24 : 2,123.21 = 1,335.08 : x
  2. Step 2: Convert to fraction form
    1,542.24/2,123.21 = 1,335.08/x
  3. Step 3: Cross multiply
    1,542.24x = 2,123.21 × 1,335.08
  4. Step 4: Simplify right side
    1,542.24x = 2,834,663.85
  5. Step 5: Solve for x
    x = 2,834,663.85/1,542.24
  6. Step 6: Final answer
    x = 1,838.02

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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.