Home / 2,073.70-3,111.08-1,257.22

Finding the Fourth Proportional to 2,073.70, 3,111.08 and 1,257.22

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Solution

The fourth proportional to 2,073.70, 3,111.08 and 1,257.22 is: 1,886.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,073.70 : 3,111.08 = 1,257.22 : x
  2. Step 2: Convert to fraction form
    2,073.70/3,111.08 = 1,257.22/x
  3. Step 3: Cross multiply
    2,073.70x = 3,111.08 × 1,257.22
  4. Step 4: Simplify right side
    2,073.70x = 3,911,312.00
  5. Step 5: Solve for x
    x = 3,911,312.00/2,073.70
  6. Step 6: Final answer
    x = 1,886.15

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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.