Home / 4,176.78-6,267.33-1,985.10

Finding the Fourth Proportional to 4,176.78, 6,267.33 and 1,985.10

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Solution

The fourth proportional to 4,176.78, 6,267.33 and 1,985.10 is: 2,978.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,176.78 : 6,267.33 = 1,985.10 : x
  2. Step 2: Convert to fraction form
    4,176.78/6,267.33 = 1,985.10/x
  3. Step 3: Cross multiply
    4,176.78x = 6,267.33 × 1,985.10
  4. Step 4: Simplify right side
    4,176.78x = 12,441,276.78
  5. Step 5: Solve for x
    x = 12,441,276.78/4,176.78
  6. Step 6: Final answer
    x = 2,978.68

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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.