Home / 1,589.30-2,193.21-926.18

Finding the Fourth Proportional to 1,589.30, 2,193.21 and 926.18

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Solution

The fourth proportional to 1,589.30, 2,193.21 and 926.18 is: 1,278.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,589.30 : 2,193.21 = 926.18 : x
  2. Step 2: Convert to fraction form
    1,589.30/2,193.21 = 926.18/x
  3. Step 3: Cross multiply
    1,589.30x = 2,193.21 × 926.18
  4. Step 4: Simplify right side
    1,589.30x = 2,031,307.24
  5. Step 5: Solve for x
    x = 2,031,307.24/1,589.30
  6. Step 6: Final answer
    x = 1,278.11

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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.