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Finding the Fourth Proportional to 1,737, 2,397.60 and 1,272.60

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Solution

The fourth proportional to 1,737, 2,397.60 and 1,272.60 is: 1,756.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,737 : 2,397.60 = 1,272.60 : x
  2. Step 2: Convert to fraction form
    1,737/2,397.60 = 1,272.60/x
  3. Step 3: Cross multiply
    1,737x = 2,397.60 × 1,272.60
  4. Step 4: Simplify right side
    1,737x = 3,051,185.76
  5. Step 5: Solve for x
    x = 3,051,185.76/1,737
  6. Step 6: Final answer
    x = 1,756.58

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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.