Home / 6,279.72-9,421.20-2,818.32

Finding the Fourth Proportional to 6,279.72, 9,421.20 and 2,818.32

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Solution

The fourth proportional to 6,279.72, 9,421.20 and 2,818.32 is: 4,228.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,279.72 : 9,421.20 = 2,818.32 : x
  2. Step 2: Convert to fraction form
    6,279.72/9,421.20 = 2,818.32/x
  3. Step 3: Cross multiply
    6,279.72x = 9,421.20 × 2,818.32
  4. Step 4: Simplify right side
    6,279.72x = 26,551,956.38
  5. Step 5: Solve for x
    x = 26,551,956.38/6,279.72
  6. Step 6: Final answer
    x = 4,228.21

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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.