Home / 1,731.30-2,377.11-1,686.18

Finding the Fourth Proportional to 1,731.30, 2,377.11 and 1,686.18

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Solution

The fourth proportional to 1,731.30, 2,377.11 and 1,686.18 is: 2,315.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,731.30 : 2,377.11 = 1,686.18 : x
  2. Step 2: Convert to fraction form
    1,731.30/2,377.11 = 1,686.18/x
  3. Step 3: Cross multiply
    1,731.30x = 2,377.11 × 1,686.18
  4. Step 4: Simplify right side
    1,731.30x = 4,008,235.34
  5. Step 5: Solve for x
    x = 4,008,235.34/1,731.30
  6. Step 6: Final answer
    x = 2,315.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.