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Finding the Fourth Proportional to 3,510.65, 5,258.41 and 1,658.99

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Solution

The fourth proportional to 3,510.65, 5,258.41 and 1,658.99 is: 2,484.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,510.65 : 5,258.41 = 1,658.99 : x
  2. Step 2: Convert to fraction form
    3,510.65/5,258.41 = 1,658.99/x
  3. Step 3: Cross multiply
    3,510.65x = 5,258.41 × 1,658.99
  4. Step 4: Simplify right side
    3,510.65x = 8,723,649.61
  5. Step 5: Solve for x
    x = 8,723,649.61/3,510.65
  6. Step 6: Final answer
    x = 2,484.91

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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.