Home / 6,141.16-8,478.78-4,230.20

Finding the Fourth Proportional to 6,141.16, 8,478.78 and 4,230.20

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Solution

The fourth proportional to 6,141.16, 8,478.78 and 4,230.20 is: 5,840.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,141.16 : 8,478.78 = 4,230.20 : x
  2. Step 2: Convert to fraction form
    6,141.16/8,478.78 = 4,230.20/x
  3. Step 3: Cross multiply
    6,141.16x = 8,478.78 × 4,230.20
  4. Step 4: Simplify right side
    6,141.16x = 35,866,935.16
  5. Step 5: Solve for x
    x = 35,866,935.16/6,141.16
  6. Step 6: Final answer
    x = 5,840.42

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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.