Home / 2,578.48-3,557.84-1,530.80

Finding the Fourth Proportional to 2,578.48, 3,557.84 and 1,530.80

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Solution

The fourth proportional to 2,578.48, 3,557.84 and 1,530.80 is: 2,112.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578.48 : 3,557.84 = 1,530.80 : x
  2. Step 2: Convert to fraction form
    2,578.48/3,557.84 = 1,530.80/x
  3. Step 3: Cross multiply
    2,578.48x = 3,557.84 × 1,530.80
  4. Step 4: Simplify right side
    2,578.48x = 5,446,341.47
  5. Step 5: Solve for x
    x = 5,446,341.47/2,578.48
  6. Step 6: Final answer
    x = 2,112.23

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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.