Home / 7,439.78-11,159.35-2,245.50

Finding the Fourth Proportional to 7,439.78, 11,159.35 and 2,245.50

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Solution

The fourth proportional to 7,439.78, 11,159.35 and 2,245.50 is: 3,368.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,439.78 : 11,159.35 = 2,245.50 : x
  2. Step 2: Convert to fraction form
    7,439.78/11,159.35 = 2,245.50/x
  3. Step 3: Cross multiply
    7,439.78x = 11,159.35 × 2,245.50
  4. Step 4: Simplify right side
    7,439.78x = 25,058,320.43
  5. Step 5: Solve for x
    x = 25,058,320.43/7,439.78
  6. Step 6: Final answer
    x = 3,368.15

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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.