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Finding the Fourth Proportional to 968.33, 1,444.88 and 909.56

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Solution

The fourth proportional to 968.33, 1,444.88 and 909.56 is: 1,357.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    968.33 : 1,444.88 = 909.56 : x
  2. Step 2: Convert to fraction form
    968.33/1,444.88 = 909.56/x
  3. Step 3: Cross multiply
    968.33x = 1,444.88 × 909.56
  4. Step 4: Simplify right side
    968.33x = 1,314,193.28
  5. Step 5: Solve for x
    x = 1,314,193.28/968.33
  6. Step 6: Final answer
    x = 1,357.18

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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.