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Finding the Fourth Proportional to 944.82, 1,407.87 and 902.97

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Solution

The fourth proportional to 944.82, 1,407.87 and 902.97 is: 1,345.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.82 : 1,407.87 = 902.97 : x
  2. Step 2: Convert to fraction form
    944.82/1,407.87 = 902.97/x
  3. Step 3: Cross multiply
    944.82x = 1,407.87 × 902.97
  4. Step 4: Simplify right side
    944.82x = 1,271,264.37
  5. Step 5: Solve for x
    x = 1,271,264.37/944.82
  6. Step 6: Final answer
    x = 1,345.51

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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.