Home / 2,047.23-3,071.30-748.71

Finding the Fourth Proportional to 2,047.23, 3,071.30 and 748.71

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Solution

The fourth proportional to 2,047.23, 3,071.30 and 748.71 is: 1,123.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,047.23 : 3,071.30 = 748.71 : x
  2. Step 2: Convert to fraction form
    2,047.23/3,071.30 = 748.71/x
  3. Step 3: Cross multiply
    2,047.23x = 3,071.30 × 748.71
  4. Step 4: Simplify right side
    2,047.23x = 2,299,509.28
  5. Step 5: Solve for x
    x = 2,299,509.28/2,047.23
  6. Step 6: Final answer
    x = 1,123.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.