Home / 4,178.21-6,267.98-1,985.74

Finding the Fourth Proportional to 4,178.21, 6,267.98 and 1,985.74

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Solution

The fourth proportional to 4,178.21, 6,267.98 and 1,985.74 is: 2,978.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,178.21 : 6,267.98 = 1,985.74 : x
  2. Step 2: Convert to fraction form
    4,178.21/6,267.98 = 1,985.74/x
  3. Step 3: Cross multiply
    4,178.21x = 6,267.98 × 1,985.74
  4. Step 4: Simplify right side
    4,178.21x = 12,446,567.90
  5. Step 5: Solve for x
    x = 12,446,567.90/4,178.21
  6. Step 6: Final answer
    x = 2,978.93

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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.