Home / 2,073.61-3,110.95-1,257.13

Finding the Fourth Proportional to 2,073.61, 3,110.95 and 1,257.13

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Solution

The fourth proportional to 2,073.61, 3,110.95 and 1,257.13 is: 1,886.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,073.61 : 3,110.95 = 1,257.13 : x
  2. Step 2: Convert to fraction form
    2,073.61/3,110.95 = 1,257.13/x
  3. Step 3: Cross multiply
    2,073.61x = 3,110.95 × 1,257.13
  4. Step 4: Simplify right side
    2,073.61x = 3,910,868.57
  5. Step 5: Solve for x
    x = 3,910,868.57/2,073.61
  6. Step 6: Final answer
    x = 1,886.02

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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.