Home / 1,442.28-2,161.56-1,029.12

Finding the Fourth Proportional to 1,442.28, 2,161.56 and 1,029.12

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Solution

The fourth proportional to 1,442.28, 2,161.56 and 1,029.12 is: 1,542.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442.28 : 2,161.56 = 1,029.12 : x
  2. Step 2: Convert to fraction form
    1,442.28/2,161.56 = 1,029.12/x
  3. Step 3: Cross multiply
    1,442.28x = 2,161.56 × 1,029.12
  4. Step 4: Simplify right side
    1,442.28x = 2,224,504.63
  5. Step 5: Solve for x
    x = 2,224,504.63/1,442.28
  6. Step 6: Final answer
    x = 1,542.35

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1.5x scale

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.