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Finding the Fourth Proportional to 1,740.90, 2,402.64 and 955.02

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Solution

The fourth proportional to 1,740.90, 2,402.64 and 955.02 is: 1,318.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,740.90 : 2,402.64 = 955.02 : x
  2. Step 2: Convert to fraction form
    1,740.90/2,402.64 = 955.02/x
  3. Step 3: Cross multiply
    1,740.90x = 2,402.64 × 955.02
  4. Step 4: Simplify right side
    1,740.90x = 2,294,569.25
  5. Step 5: Solve for x
    x = 2,294,569.25/1,740.90
  6. Step 6: Final answer
    x = 1,318.04

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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.