Home / 3,579.40-4,938.36-2,253.20

Finding the Fourth Proportional to 3,579.40, 4,938.36 and 2,253.20

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Solution

The fourth proportional to 3,579.40, 4,938.36 and 2,253.20 is: 3,108.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,579.40 : 4,938.36 = 2,253.20 : x
  2. Step 2: Convert to fraction form
    3,579.40/4,938.36 = 2,253.20/x
  3. Step 3: Cross multiply
    3,579.40x = 4,938.36 × 2,253.20
  4. Step 4: Simplify right side
    3,579.40x = 11,127,112.75
  5. Step 5: Solve for x
    x = 11,127,112.75/3,579.40
  6. Step 6: Final answer
    x = 3,108.65

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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.