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Finding the Fourth Proportional to 1,760.79, 2,641.68 and 650.19

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Solution

The fourth proportional to 1,760.79, 2,641.68 and 650.19 is: 975.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,760.79 : 2,641.68 = 650.19 : x
  2. Step 2: Convert to fraction form
    1,760.79/2,641.68 = 650.19/x
  3. Step 3: Cross multiply
    1,760.79x = 2,641.68 × 650.19
  4. Step 4: Simplify right side
    1,760.79x = 1,717,593.92
  5. Step 5: Solve for x
    x = 1,717,593.92/1,760.79
  6. Step 6: Final answer
    x = 975.47

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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.