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Finding the Fourth Proportional to 1,807.96, 2,496.42 and 1,178.92

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Solution

The fourth proportional to 1,807.96, 2,496.42 and 1,178.92 is: 1,627.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,807.96 : 2,496.42 = 1,178.92 : x
  2. Step 2: Convert to fraction form
    1,807.96/2,496.42 = 1,178.92/x
  3. Step 3: Cross multiply
    1,807.96x = 2,496.42 × 1,178.92
  4. Step 4: Simplify right side
    1,807.96x = 2,943,079.47
  5. Step 5: Solve for x
    x = 2,943,079.47/1,807.96
  6. Step 6: Final answer
    x = 1,627.85

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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.