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Finding the Fourth Proportional to 1,677.32, 2,515.99 and 444.71

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Solution

The fourth proportional to 1,677.32, 2,515.99 and 444.71 is: 667.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,677.32 : 2,515.99 = 444.71 : x
  2. Step 2: Convert to fraction form
    1,677.32/2,515.99 = 444.71/x
  3. Step 3: Cross multiply
    1,677.32x = 2,515.99 × 444.71
  4. Step 4: Simplify right side
    1,677.32x = 1,118,883.24
  5. Step 5: Solve for x
    x = 1,118,883.24/1,677.32
  6. Step 6: Final answer
    x = 667.07

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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.