Home / 2,071.74-3,123.12-1,934.24

Finding the Fourth Proportional to 2,071.74, 3,123.12 and 1,934.24

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Solution

The fourth proportional to 2,071.74, 3,123.12 and 1,934.24 is: 2,915.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,071.74 : 3,123.12 = 1,934.24 : x
  2. Step 2: Convert to fraction form
    2,071.74/3,123.12 = 1,934.24/x
  3. Step 3: Cross multiply
    2,071.74x = 3,123.12 × 1,934.24
  4. Step 4: Simplify right side
    2,071.74x = 6,040,863.63
  5. Step 5: Solve for x
    x = 6,040,863.63/2,071.74
  6. Step 6: Final answer
    x = 2,915.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.