Home / 1,837.25-2,742.40-1,578.90

Finding the Fourth Proportional to 1,837.25, 2,742.40 and 1,578.90

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Solution

The fourth proportional to 1,837.25, 2,742.40 and 1,578.90 is: 2,356.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,837.25 : 2,742.40 = 1,578.90 : x
  2. Step 2: Convert to fraction form
    1,837.25/2,742.40 = 1,578.90/x
  3. Step 3: Cross multiply
    1,837.25x = 2,742.40 × 1,578.90
  4. Step 4: Simplify right side
    1,837.25x = 4,329,967.47
  5. Step 5: Solve for x
    x = 4,329,967.47/1,837.25
  6. Step 6: Final answer
    x = 2,356.77

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.