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Finding the Fourth Proportional to 3,703.76, 5,557.06 and 1,238.92

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Solution

The fourth proportional to 3,703.76, 5,557.06 and 1,238.92 is: 1,858.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,703.76 : 5,557.06 = 1,238.92 : x
  2. Step 2: Convert to fraction form
    3,703.76/5,557.06 = 1,238.92/x
  3. Step 3: Cross multiply
    3,703.76x = 5,557.06 × 1,238.92
  4. Step 4: Simplify right side
    3,703.76x = 6,884,752.78
  5. Step 5: Solve for x
    x = 6,884,752.78/3,703.76
  6. Step 6: Final answer
    x = 1,858.85

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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.