Home / 5,005.22-7,503.78-2,085.71

Finding the Fourth Proportional to 5,005.22, 7,503.78 and 2,085.71

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Solution

The fourth proportional to 5,005.22, 7,503.78 and 2,085.71 is: 3,126.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,005.22 : 7,503.78 = 2,085.71 : x
  2. Step 2: Convert to fraction form
    5,005.22/7,503.78 = 2,085.71/x
  3. Step 3: Cross multiply
    5,005.22x = 7,503.78 × 2,085.71
  4. Step 4: Simplify right side
    5,005.22x = 15,650,727.74
  5. Step 5: Solve for x
    x = 15,650,727.74/5,005.22
  6. Step 6: Final answer
    x = 3,126.88

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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.