Home / 2,720.91-3,758.40-2,250.71

Finding the Fourth Proportional to 2,720.91, 3,758.40 and 2,250.71

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Solution

The fourth proportional to 2,720.91, 3,758.40 and 2,250.71 is: 3,108.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.91 : 3,758.40 = 2,250.71 : x
  2. Step 2: Convert to fraction form
    2,720.91/3,758.40 = 2,250.71/x
  3. Step 3: Cross multiply
    2,720.91x = 3,758.40 × 2,250.71
  4. Step 4: Simplify right side
    2,720.91x = 8,459,068.46
  5. Step 5: Solve for x
    x = 8,459,068.46/2,720.91
  6. Step 6: Final answer
    x = 3,108.91

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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.