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Finding the Fourth Proportional to 1,608.68, 2,401.36 and 1,488.44

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Solution

The fourth proportional to 1,608.68, 2,401.36 and 1,488.44 is: 2,221.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,608.68 : 2,401.36 = 1,488.44 : x
  2. Step 2: Convert to fraction form
    1,608.68/2,401.36 = 1,488.44/x
  3. Step 3: Cross multiply
    1,608.68x = 2,401.36 × 1,488.44
  4. Step 4: Simplify right side
    1,608.68x = 3,574,280.28
  5. Step 5: Solve for x
    x = 3,574,280.28/1,608.68
  6. Step 6: Final answer
    x = 2,221.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.