Home / 7,142.40-10,714.32-2,461.79

Finding the Fourth Proportional to 7,142.40, 10,714.32 and 2,461.79

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Solution

The fourth proportional to 7,142.40, 10,714.32 and 2,461.79 is: 3,692.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,142.40 : 10,714.32 = 2,461.79 : x
  2. Step 2: Convert to fraction form
    7,142.40/10,714.32 = 2,461.79/x
  3. Step 3: Cross multiply
    7,142.40x = 10,714.32 × 2,461.79
  4. Step 4: Simplify right side
    7,142.40x = 26,376,432.62
  5. Step 5: Solve for x
    x = 26,376,432.62/7,142.40
  6. Step 6: Final answer
    x = 3,692.94

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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.