Home / 4,177.60-6,259.20-1,981.60

Finding the Fourth Proportional to 4,177.60, 6,259.20 and 1,981.60

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Solution

The fourth proportional to 4,177.60, 6,259.20 and 1,981.60 is: 2,968.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,177.60 : 6,259.20 = 1,981.60 : x
  2. Step 2: Convert to fraction form
    4,177.60/6,259.20 = 1,981.60/x
  3. Step 3: Cross multiply
    4,177.60x = 6,259.20 × 1,981.60
  4. Step 4: Simplify right side
    4,177.60x = 12,403,230.72
  5. Step 5: Solve for x
    x = 12,403,230.72/4,177.60
  6. Step 6: Final answer
    x = 2,968.98

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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.