Home / 5,856.80-8,079.93-3,840.71

Finding the Fourth Proportional to 5,856.80, 8,079.93 and 3,840.71

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Solution

The fourth proportional to 5,856.80, 8,079.93 and 3,840.71 is: 5,298.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,856.80 : 8,079.93 = 3,840.71 : x
  2. Step 2: Convert to fraction form
    5,856.80/8,079.93 = 3,840.71/x
  3. Step 3: Cross multiply
    5,856.80x = 8,079.93 × 3,840.71
  4. Step 4: Simplify right side
    5,856.80x = 31,032,627.55
  5. Step 5: Solve for x
    x = 31,032,627.55/5,856.80
  6. Step 6: Final answer
    x = 5,298.57

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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.