Home / 6,381.76-9,576.32-2,870.72

Finding the Fourth Proportional to 6,381.76, 9,576.32 and 2,870.72

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Solution

The fourth proportional to 6,381.76, 9,576.32 and 2,870.72 is: 4,307.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,381.76 : 9,576.32 = 2,870.72 : x
  2. Step 2: Convert to fraction form
    6,381.76/9,576.32 = 2,870.72/x
  3. Step 3: Cross multiply
    6,381.76x = 9,576.32 × 2,870.72
  4. Step 4: Simplify right side
    6,381.76x = 27,490,933.35
  5. Step 5: Solve for x
    x = 27,490,933.35/6,381.76
  6. Step 6: Final answer
    x = 4,307.74

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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.