Home / 3,752.86-5,178.72-2,261.26

Finding the Fourth Proportional to 3,752.86, 5,178.72 and 2,261.26

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Solution

The fourth proportional to 3,752.86, 5,178.72 and 2,261.26 is: 3,120.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,752.86 : 5,178.72 = 2,261.26 : x
  2. Step 2: Convert to fraction form
    3,752.86/5,178.72 = 2,261.26/x
  3. Step 3: Cross multiply
    3,752.86x = 5,178.72 × 2,261.26
  4. Step 4: Simplify right side
    3,752.86x = 11,710,432.39
  5. Step 5: Solve for x
    x = 11,710,432.39/3,752.86
  6. Step 6: Final answer
    x = 3,120.40

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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.