Home / 3,123.50-4,314.09-2,073.74

Finding the Fourth Proportional to 3,123.50, 4,314.09 and 2,073.74

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Solution

The fourth proportional to 3,123.50, 4,314.09 and 2,073.74 is: 2,864.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,123.50 : 4,314.09 = 2,073.74 : x
  2. Step 2: Convert to fraction form
    3,123.50/4,314.09 = 2,073.74/x
  3. Step 3: Cross multiply
    3,123.50x = 4,314.09 × 2,073.74
  4. Step 4: Simplify right side
    3,123.50x = 8,946,301.00
  5. Step 5: Solve for x
    x = 8,946,301.00/3,123.50
  6. Step 6: Final answer
    x = 2,864.19

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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.