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Finding the Fourth Proportional to 1,254.00, 1,730.25 and 955.18

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Solution

The fourth proportional to 1,254.00, 1,730.25 and 955.18 is: 1,317.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,254.00 : 1,730.25 = 955.18 : x
  2. Step 2: Convert to fraction form
    1,254.00/1,730.25 = 955.18/x
  3. Step 3: Cross multiply
    1,254.00x = 1,730.25 × 955.18
  4. Step 4: Simplify right side
    1,254.00x = 1,652,700.20
  5. Step 5: Solve for x
    x = 1,652,700.20/1,254.00
  6. Step 6: Final answer
    x = 1,317.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.