Home / 1,588.11-2,190.49-1,116.99

Finding the Fourth Proportional to 1,588.11, 2,190.49 and 1,116.99

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Solution

The fourth proportional to 1,588.11, 2,190.49 and 1,116.99 is: 1,540.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,588.11 : 2,190.49 = 1,116.99 : x
  2. Step 2: Convert to fraction form
    1,588.11/2,190.49 = 1,116.99/x
  3. Step 3: Cross multiply
    1,588.11x = 2,190.49 × 1,116.99
  4. Step 4: Simplify right side
    1,588.11x = 2,446,758.92
  5. Step 5: Solve for x
    x = 2,446,758.92/1,588.11
  6. Step 6: Final answer
    x = 1,540.68

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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.