Home / 3,140.06-4,713.93-1,475.78

Finding the Fourth Proportional to 3,140.06, 4,713.93 and 1,475.78

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Solution

The fourth proportional to 3,140.06, 4,713.93 and 1,475.78 is: 2,215.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.06 : 4,713.93 = 1,475.78 : x
  2. Step 2: Convert to fraction form
    3,140.06/4,713.93 = 1,475.78/x
  3. Step 3: Cross multiply
    3,140.06x = 4,713.93 × 1,475.78
  4. Step 4: Simplify right side
    3,140.06x = 6,956,723.62
  5. Step 5: Solve for x
    x = 6,956,723.62/3,140.06
  6. Step 6: Final answer
    x = 2,215.47

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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.