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Finding the Fourth Proportional to 1,748.76, 2,413.28 and 962.80

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Solution

The fourth proportional to 1,748.76, 2,413.28 and 962.80 is: 1,328.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,748.76 : 2,413.28 = 962.80 : x
  2. Step 2: Convert to fraction form
    1,748.76/2,413.28 = 962.80/x
  3. Step 3: Cross multiply
    1,748.76x = 2,413.28 × 962.80
  4. Step 4: Simplify right side
    1,748.76x = 2,323,505.98
  5. Step 5: Solve for x
    x = 2,323,505.98/1,748.76
  6. Step 6: Final answer
    x = 1,328.66

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1.5x scale

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.