Home / 1,588.47-2,191.06-1,091.38

Finding the Fourth Proportional to 1,588.47, 2,191.06 and 1,091.38

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Solution

The fourth proportional to 1,588.47, 2,191.06 and 1,091.38 is: 1,505.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,588.47 : 2,191.06 = 1,091.38 : x
  2. Step 2: Convert to fraction form
    1,588.47/2,191.06 = 1,091.38/x
  3. Step 3: Cross multiply
    1,588.47x = 2,191.06 × 1,091.38
  4. Step 4: Simplify right side
    1,588.47x = 2,391,279.06
  5. Step 5: Solve for x
    x = 2,391,279.06/1,588.47
  6. Step 6: Final answer
    x = 1,505.40

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Half scale
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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.