Home / 1,588.84-2,190.17-1,115.41

Finding the Fourth Proportional to 1,588.84, 2,190.17 and 1,115.41

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Solution

The fourth proportional to 1,588.84, 2,190.17 and 1,115.41 is: 1,537.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,588.84 : 2,190.17 = 1,115.41 : x
  2. Step 2: Convert to fraction form
    1,588.84/2,190.17 = 1,115.41/x
  3. Step 3: Cross multiply
    1,588.84x = 2,190.17 × 1,115.41
  4. Step 4: Simplify right side
    1,588.84x = 2,442,937.37
  5. Step 5: Solve for x
    x = 2,442,937.37/1,588.84
  6. Step 6: Final answer
    x = 1,537.56

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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.