Home / 1,927.10-2,658.34-1,170.38

Finding the Fourth Proportional to 1,927.10, 2,658.34 and 1,170.38

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Solution

The fourth proportional to 1,927.10, 2,658.34 and 1,170.38 is: 1,614.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,927.10 : 2,658.34 = 1,170.38 : x
  2. Step 2: Convert to fraction form
    1,927.10/2,658.34 = 1,170.38/x
  3. Step 3: Cross multiply
    1,927.10x = 2,658.34 × 1,170.38
  4. Step 4: Simplify right side
    1,927.10x = 3,111,267.97
  5. Step 5: Solve for x
    x = 3,111,267.97/1,927.10
  6. Step 6: Final answer
    x = 1,614.48

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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.