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Finding the Fourth Proportional to 1,730.64, 2,593.51 and 999.21

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Solution

The fourth proportional to 1,730.64, 2,593.51 and 999.21 is: 1,497.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,730.64 : 2,593.51 = 999.21 : x
  2. Step 2: Convert to fraction form
    1,730.64/2,593.51 = 999.21/x
  3. Step 3: Cross multiply
    1,730.64x = 2,593.51 × 999.21
  4. Step 4: Simplify right side
    1,730.64x = 2,591,461.13
  5. Step 5: Solve for x
    x = 2,591,461.13/1,730.64
  6. Step 6: Final answer
    x = 1,497.40

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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.