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Finding the Fourth Proportional to 3,714.71, 5,126.63 and 2,391.57

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Solution

The fourth proportional to 3,714.71, 5,126.63 and 2,391.57 is: 3,300.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,714.71 : 5,126.63 = 2,391.57 : x
  2. Step 2: Convert to fraction form
    3,714.71/5,126.63 = 2,391.57/x
  3. Step 3: Cross multiply
    3,714.71x = 5,126.63 × 2,391.57
  4. Step 4: Simplify right side
    3,714.71x = 12,260,682.55
  5. Step 5: Solve for x
    x = 12,260,682.55/3,714.71
  6. Step 6: Final answer
    x = 3,300.58

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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.