Home / 3,713.10-5,123.03-2,140.89

Finding the Fourth Proportional to 3,713.10, 5,123.03 and 2,140.89

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Solution

The fourth proportional to 3,713.10, 5,123.03 and 2,140.89 is: 2,953.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,713.10 : 5,123.03 = 2,140.89 : x
  2. Step 2: Convert to fraction form
    3,713.10/5,123.03 = 2,140.89/x
  3. Step 3: Cross multiply
    3,713.10x = 5,123.03 × 2,140.89
  4. Step 4: Simplify right side
    3,713.10x = 10,967,832.99
  5. Step 5: Solve for x
    x = 10,967,832.99/3,713.10
  6. Step 6: Final answer
    x = 2,953.82

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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.