Home / 6,226.78-8,590.56-3,988.30

Finding the Fourth Proportional to 6,226.78, 8,590.56 and 3,988.30

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Solution

The fourth proportional to 6,226.78, 8,590.56 and 3,988.30 is: 5,502.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,226.78 : 8,590.56 = 3,988.30 : x
  2. Step 2: Convert to fraction form
    6,226.78/8,590.56 = 3,988.30/x
  3. Step 3: Cross multiply
    6,226.78x = 8,590.56 × 3,988.30
  4. Step 4: Simplify right side
    6,226.78x = 34,261,730.45
  5. Step 5: Solve for x
    x = 34,261,730.45/6,226.78
  6. Step 6: Final answer
    x = 5,502.32

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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.