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Finding the Fourth Proportional to 1,047.64, 1,446.33 and 837.13

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Solution

The fourth proportional to 1,047.64, 1,446.33 and 837.13 is: 1,155.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047.64 : 1,446.33 = 837.13 : x
  2. Step 2: Convert to fraction form
    1,047.64/1,446.33 = 837.13/x
  3. Step 3: Cross multiply
    1,047.64x = 1,446.33 × 837.13
  4. Step 4: Simplify right side
    1,047.64x = 1,210,766.23
  5. Step 5: Solve for x
    x = 1,210,766.23/1,047.64
  6. Step 6: Final answer
    x = 1,155.71

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Double scale
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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.