Home / 3,868.11-5,337.98-2,099.71

Finding the Fourth Proportional to 3,868.11, 5,337.98 and 2,099.71

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Solution

The fourth proportional to 3,868.11, 5,337.98 and 2,099.71 is: 2,897.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,868.11 : 5,337.98 = 2,099.71 : x
  2. Step 2: Convert to fraction form
    3,868.11/5,337.98 = 2,099.71/x
  3. Step 3: Cross multiply
    3,868.11x = 5,337.98 × 2,099.71
  4. Step 4: Simplify right side
    3,868.11x = 11,208,225.24
  5. Step 5: Solve for x
    x = 11,208,225.24/3,868.11
  6. Step 6: Final answer
    x = 2,897.60

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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.