Home / 2,445.80-3,377.70-2,289.06

Finding the Fourth Proportional to 2,445.80, 3,377.70 and 2,289.06

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Solution

The fourth proportional to 2,445.80, 3,377.70 and 2,289.06 is: 3,161.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,445.80 : 3,377.70 = 2,289.06 : x
  2. Step 2: Convert to fraction form
    2,445.80/3,377.70 = 2,289.06/x
  3. Step 3: Cross multiply
    2,445.80x = 3,377.70 × 2,289.06
  4. Step 4: Simplify right side
    2,445.80x = 7,731,757.96
  5. Step 5: Solve for x
    x = 7,731,757.96/2,445.80
  6. Step 6: Final answer
    x = 3,161.25

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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.