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Finding the Fourth Proportional to 2,040.68, 3,060.66 and 807.68

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Solution

The fourth proportional to 2,040.68, 3,060.66 and 807.68 is: 1,211.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,040.68 : 3,060.66 = 807.68 : x
  2. Step 2: Convert to fraction form
    2,040.68/3,060.66 = 807.68/x
  3. Step 3: Cross multiply
    2,040.68x = 3,060.66 × 807.68
  4. Step 4: Simplify right side
    2,040.68x = 2,472,033.87
  5. Step 5: Solve for x
    x = 2,472,033.87/2,040.68
  6. Step 6: Final answer
    x = 1,211.38

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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.