Home / 2,127.18-2,934.51-1,342.38

Finding the Fourth Proportional to 2,127.18, 2,934.51 and 1,342.38

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Solution

The fourth proportional to 2,127.18, 2,934.51 and 1,342.38 is: 1,851.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,127.18 : 2,934.51 = 1,342.38 : x
  2. Step 2: Convert to fraction form
    2,127.18/2,934.51 = 1,342.38/x
  3. Step 3: Cross multiply
    2,127.18x = 2,934.51 × 1,342.38
  4. Step 4: Simplify right side
    2,127.18x = 3,939,227.53
  5. Step 5: Solve for x
    x = 3,939,227.53/2,127.18
  6. Step 6: Final answer
    x = 1,851.85

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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.