Home / 4,188.78-6,283.20-1,110.78

Finding the Fourth Proportional to 4,188.78, 6,283.20 and 1,110.78

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Solution

The fourth proportional to 4,188.78, 6,283.20 and 1,110.78 is: 1,666.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,188.78 : 6,283.20 = 1,110.78 : x
  2. Step 2: Convert to fraction form
    4,188.78/6,283.20 = 1,110.78/x
  3. Step 3: Cross multiply
    4,188.78x = 6,283.20 × 1,110.78
  4. Step 4: Simplify right side
    4,188.78x = 6,979,252.90
  5. Step 5: Solve for x
    x = 6,979,252.90/4,188.78
  6. Step 6: Final answer
    x = 1,666.18

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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.