Home / 2,561.20-3,840.56-1,465.28

Finding the Fourth Proportional to 2,561.20, 3,840.56 and 1,465.28

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Solution

The fourth proportional to 2,561.20, 3,840.56 and 1,465.28 is: 2,197.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,561.20 : 3,840.56 = 1,465.28 : x
  2. Step 2: Convert to fraction form
    2,561.20/3,840.56 = 1,465.28/x
  3. Step 3: Cross multiply
    2,561.20x = 3,840.56 × 1,465.28
  4. Step 4: Simplify right side
    2,561.20x = 5,627,495.76
  5. Step 5: Solve for x
    x = 5,627,495.76/2,561.20
  6. Step 6: Final answer
    x = 2,197.21

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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.