Home / 1,588.16-2,191.92-889.76

Finding the Fourth Proportional to 1,588.16, 2,191.92 and 889.76

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Solution

The fourth proportional to 1,588.16, 2,191.92 and 889.76 is: 1,228.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,588.16 : 2,191.92 = 889.76 : x
  2. Step 2: Convert to fraction form
    1,588.16/2,191.92 = 889.76/x
  3. Step 3: Cross multiply
    1,588.16x = 2,191.92 × 889.76
  4. Step 4: Simplify right side
    1,588.16x = 1,950,282.74
  5. Step 5: Solve for x
    x = 1,950,282.74/1,588.16
  6. Step 6: Final answer
    x = 1,228.01

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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.