Home / 2,569.95-3,546.53-1,391.02

Finding the Fourth Proportional to 2,569.95, 3,546.53 and 1,391.02

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Solution

The fourth proportional to 2,569.95, 3,546.53 and 1,391.02 is: 1,919.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,569.95 : 3,546.53 = 1,391.02 : x
  2. Step 2: Convert to fraction form
    2,569.95/3,546.53 = 1,391.02/x
  3. Step 3: Cross multiply
    2,569.95x = 3,546.53 × 1,391.02
  4. Step 4: Simplify right side
    2,569.95x = 4,933,281.82
  5. Step 5: Solve for x
    x = 4,933,281.82/2,569.95
  6. Step 6: Final answer
    x = 1,919.60

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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.