Home / 2,561.36-3,533.28-2,229.20

Finding the Fourth Proportional to 2,561.36, 3,533.28 and 2,229.20

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Solution

The fourth proportional to 2,561.36, 3,533.28 and 2,229.20 is: 3,075.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,561.36 : 3,533.28 = 2,229.20 : x
  2. Step 2: Convert to fraction form
    2,561.36/3,533.28 = 2,229.20/x
  3. Step 3: Cross multiply
    2,561.36x = 3,533.28 × 2,229.20
  4. Step 4: Simplify right side
    2,561.36x = 7,876,387.78
  5. Step 5: Solve for x
    x = 7,876,387.78/2,561.36
  6. Step 6: Final answer
    x = 3,075.08

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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.