Home / 5,856.30-8,079.24-3,840.20

Finding the Fourth Proportional to 5,856.30, 8,079.24 and 3,840.20

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Solution

The fourth proportional to 5,856.30, 8,079.24 and 3,840.20 is: 5,297.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,856.30 : 8,079.24 = 3,840.20 : x
  2. Step 2: Convert to fraction form
    5,856.30/8,079.24 = 3,840.20/x
  3. Step 3: Cross multiply
    5,856.30x = 8,079.24 × 3,840.20
  4. Step 4: Simplify right side
    5,856.30x = 31,025,897.45
  5. Step 5: Solve for x
    x = 31,025,897.45/5,856.30
  6. Step 6: Final answer
    x = 5,297.87

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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.