Home / 3,578.64-5,365.62-1,387.59

Finding the Fourth Proportional to 3,578.64, 5,365.62 and 1,387.59

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Solution

The fourth proportional to 3,578.64, 5,365.62 and 1,387.59 is: 2,080.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,578.64 : 5,365.62 = 1,387.59 : x
  2. Step 2: Convert to fraction form
    3,578.64/5,365.62 = 1,387.59/x
  3. Step 3: Cross multiply
    3,578.64x = 5,365.62 × 1,387.59
  4. Step 4: Simplify right side
    3,578.64x = 7,445,280.66
  5. Step 5: Solve for x
    x = 7,445,280.66/3,578.64
  6. Step 6: Final answer
    x = 2,080.48

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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.