Home / 1,542.33-2,129.12-1,071.83

Finding the Fourth Proportional to 1,542.33, 2,129.12 and 1,071.83

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Solution

The fourth proportional to 1,542.33, 2,129.12 and 1,071.83 is: 1,479.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,542.33 : 2,129.12 = 1,071.83 : x
  2. Step 2: Convert to fraction form
    1,542.33/2,129.12 = 1,071.83/x
  3. Step 3: Cross multiply
    1,542.33x = 2,129.12 × 1,071.83
  4. Step 4: Simplify right side
    1,542.33x = 2,282,038.68
  5. Step 5: Solve for x
    x = 2,282,038.68/1,542.33
  6. Step 6: Final answer
    x = 1,479.60

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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.