Home / 3,117.50-4,672.15-1,270.00

Finding the Fourth Proportional to 3,117.50, 4,672.15 and 1,270.00

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Solution

The fourth proportional to 3,117.50, 4,672.15 and 1,270.00 is: 1,903.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.50 : 4,672.15 = 1,270.00 : x
  2. Step 2: Convert to fraction form
    3,117.50/4,672.15 = 1,270.00/x
  3. Step 3: Cross multiply
    3,117.50x = 4,672.15 × 1,270.00
  4. Step 4: Simplify right side
    3,117.50x = 5,933,619.42
  5. Step 5: Solve for x
    x = 5,933,619.42/3,117.50
  6. Step 6: Final answer
    x = 1,903.33

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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.