Home / 5,670.40-8,489.62-4,279.32

Finding the Fourth Proportional to 5,670.40, 8,489.62 and 4,279.32

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Solution

The fourth proportional to 5,670.40, 8,489.62 and 4,279.32 is: 6,406.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,670.40 : 8,489.62 = 4,279.32 : x
  2. Step 2: Convert to fraction form
    5,670.40/8,489.62 = 4,279.32/x
  3. Step 3: Cross multiply
    5,670.40x = 8,489.62 × 4,279.32
  4. Step 4: Simplify right side
    5,670.40x = 36,329,800.66
  5. Step 5: Solve for x
    x = 36,329,800.66/5,670.40
  6. Step 6: Final answer
    x = 6,406.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.