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Finding the Fourth Proportional to 3,752.55, 5,178.48 and 2,074.07

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Solution

The fourth proportional to 3,752.55, 5,178.48 and 2,074.07 is: 2,862.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,752.55 : 5,178.48 = 2,074.07 : x
  2. Step 2: Convert to fraction form
    3,752.55/5,178.48 = 2,074.07/x
  3. Step 3: Cross multiply
    3,752.55x = 5,178.48 × 2,074.07
  4. Step 4: Simplify right side
    3,752.55x = 10,740,509.31
  5. Step 5: Solve for x
    x = 10,740,509.31/3,752.55
  6. Step 6: Final answer
    x = 2,862.19

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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.