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Finding the Fourth Proportional to 1,350.42, 1,863.60 and 760.92

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Solution

The fourth proportional to 1,350.42, 1,863.60 and 760.92 is: 1,050.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,350.42 : 1,863.60 = 760.92 : x
  2. Step 2: Convert to fraction form
    1,350.42/1,863.60 = 760.92/x
  3. Step 3: Cross multiply
    1,350.42x = 1,863.60 × 760.92
  4. Step 4: Simplify right side
    1,350.42x = 1,418,050.51
  5. Step 5: Solve for x
    x = 1,418,050.51/1,350.42
  6. Step 6: Final answer
    x = 1,050.08

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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.