Home / 2,439.87-3,374.81-2,253.98

Finding the Fourth Proportional to 2,439.87, 3,374.81 and 2,253.98

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Solution

The fourth proportional to 2,439.87, 3,374.81 and 2,253.98 is: 3,117.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,439.87 : 3,374.81 = 2,253.98 : x
  2. Step 2: Convert to fraction form
    2,439.87/3,374.81 = 2,253.98/x
  3. Step 3: Cross multiply
    2,439.87x = 3,374.81 × 2,253.98
  4. Step 4: Simplify right side
    2,439.87x = 7,606,753.56
  5. Step 5: Solve for x
    x = 7,606,753.56/2,439.87
  6. Step 6: Final answer
    x = 3,117.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.