Home / 3,859.40-5,325.90-2,287.52

Finding the Fourth Proportional to 3,859.40, 5,325.90 and 2,287.52

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Solution

The fourth proportional to 3,859.40, 5,325.90 and 2,287.52 is: 3,156.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,859.40 : 5,325.90 = 2,287.52 : x
  2. Step 2: Convert to fraction form
    3,859.40/5,325.90 = 2,287.52/x
  3. Step 3: Cross multiply
    3,859.40x = 5,325.90 × 2,287.52
  4. Step 4: Simplify right side
    3,859.40x = 12,183,102.77
  5. Step 5: Solve for x
    x = 12,183,102.77/3,859.40
  6. Step 6: Final answer
    x = 3,156.73

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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.