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Finding the Fourth Proportional to 954.16, 1,317.18 and 674.62

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Solution

The fourth proportional to 954.16, 1,317.18 and 674.62 is: 931.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    954.16 : 1,317.18 = 674.62 : x
  2. Step 2: Convert to fraction form
    954.16/1,317.18 = 674.62/x
  3. Step 3: Cross multiply
    954.16x = 1,317.18 × 674.62
  4. Step 4: Simplify right side
    954.16x = 888,595.97
  5. Step 5: Solve for x
    x = 888,595.97/954.16
  6. Step 6: Final answer
    x = 931.29

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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.