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Finding the Fourth Proportional to 2,657.59, 3,986.40 and 1,014.22

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Solution

The fourth proportional to 2,657.59, 3,986.40 and 1,014.22 is: 1,521.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,657.59 : 3,986.40 = 1,014.22 : x
  2. Step 2: Convert to fraction form
    2,657.59/3,986.40 = 1,014.22/x
  3. Step 3: Cross multiply
    2,657.59x = 3,986.40 × 1,014.22
  4. Step 4: Simplify right side
    2,657.59x = 4,043,086.61
  5. Step 5: Solve for x
    x = 4,043,086.61/2,657.59
  6. Step 6: Final answer
    x = 1,521.34

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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.