Home / 2,070.11-2,856.71-1,125.88

Finding the Fourth Proportional to 2,070.11, 2,856.71 and 1,125.88

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Solution

The fourth proportional to 2,070.11, 2,856.71 and 1,125.88 is: 1,553.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,070.11 : 2,856.71 = 1,125.88 : x
  2. Step 2: Convert to fraction form
    2,070.11/2,856.71 = 1,125.88/x
  3. Step 3: Cross multiply
    2,070.11x = 2,856.71 × 1,125.88
  4. Step 4: Simplify right side
    2,070.11x = 3,216,304.43
  5. Step 5: Solve for x
    x = 3,216,304.43/2,070.11
  6. Step 6: Final answer
    x = 1,553.69

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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.