Home / 3,728.88-5,144.85-2,402.10

Finding the Fourth Proportional to 3,728.88, 5,144.85 and 2,402.10

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Solution

The fourth proportional to 3,728.88, 5,144.85 and 2,402.10 is: 3,314.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,728.88 : 5,144.85 = 2,402.10 : x
  2. Step 2: Convert to fraction form
    3,728.88/5,144.85 = 2,402.10/x
  3. Step 3: Cross multiply
    3,728.88x = 5,144.85 × 2,402.10
  4. Step 4: Simplify right side
    3,728.88x = 12,358,444.19
  5. Step 5: Solve for x
    x = 12,358,444.19/3,728.88
  6. Step 6: Final answer
    x = 3,314.25

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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.