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Finding the Fourth Proportional to 868.89, 1,296.58 and 848.04

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Solution

The fourth proportional to 868.89, 1,296.58 and 848.04 is: 1,265.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    868.89 : 1,296.58 = 848.04 : x
  2. Step 2: Convert to fraction form
    868.89/1,296.58 = 848.04/x
  3. Step 3: Cross multiply
    868.89x = 1,296.58 × 848.04
  4. Step 4: Simplify right side
    868.89x = 1,099,549.58
  5. Step 5: Solve for x
    x = 1,099,549.58/868.89
  6. Step 6: Final answer
    x = 1,265.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.