Home / 6,860.43-10,285.65-2,178.90

Finding the Fourth Proportional to 6,860.43, 10,285.65 and 2,178.90

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Solution

The fourth proportional to 6,860.43, 10,285.65 and 2,178.90 is: 3,266.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,860.43 : 10,285.65 = 2,178.90 : x
  2. Step 2: Convert to fraction form
    6,860.43/10,285.65 = 2,178.90/x
  3. Step 3: Cross multiply
    6,860.43x = 10,285.65 × 2,178.90
  4. Step 4: Simplify right side
    6,860.43x = 22,411,402.79
  5. Step 5: Solve for x
    x = 22,411,402.79/6,860.43
  6. Step 6: Final answer
    x = 3,266.76

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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.