Home / 1,646.12-2,272.46-1,124.92

Finding the Fourth Proportional to 1,646.12, 2,272.46 and 1,124.92

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Solution

The fourth proportional to 1,646.12, 2,272.46 and 1,124.92 is: 1,552.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,646.12 : 2,272.46 = 1,124.92 : x
  2. Step 2: Convert to fraction form
    1,646.12/2,272.46 = 1,124.92/x
  3. Step 3: Cross multiply
    1,646.12x = 2,272.46 × 1,124.92
  4. Step 4: Simplify right side
    1,646.12x = 2,556,335.70
  5. Step 5: Solve for x
    x = 2,556,335.70/1,646.12
  6. Step 6: Final answer
    x = 1,552.95

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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.