Home / 7,787.59-11,679.63-2,239.70

Finding the Fourth Proportional to 7,787.59, 11,679.63 and 2,239.70

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Solution

The fourth proportional to 7,787.59, 11,679.63 and 2,239.70 is: 3,359.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,787.59 : 11,679.63 = 2,239.70 : x
  2. Step 2: Convert to fraction form
    7,787.59/11,679.63 = 2,239.70/x
  3. Step 3: Cross multiply
    7,787.59x = 11,679.63 × 2,239.70
  4. Step 4: Simplify right side
    7,787.59x = 26,158,867.31
  5. Step 5: Solve for x
    x = 26,158,867.31/7,787.59
  6. Step 6: Final answer
    x = 3,359.05

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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.