Home / 2,569.32-3,853.56-720.27

Finding the Fourth Proportional to 2,569.32, 3,853.56 and 720.27

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Solution

The fourth proportional to 2,569.32, 3,853.56 and 720.27 is: 1,080.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,569.32 : 3,853.56 = 720.27 : x
  2. Step 2: Convert to fraction form
    2,569.32/3,853.56 = 720.27/x
  3. Step 3: Cross multiply
    2,569.32x = 3,853.56 × 720.27
  4. Step 4: Simplify right side
    2,569.32x = 2,775,603.66
  5. Step 5: Solve for x
    x = 2,775,603.66/2,569.32
  6. Step 6: Final answer
    x = 1,080.29

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1.5x scale

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.