Home / 2,578.84-3,556.11-1,530.70

Finding the Fourth Proportional to 2,578.84, 3,556.11 and 1,530.70

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Solution

The fourth proportional to 2,578.84, 3,556.11 and 1,530.70 is: 2,110.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578.84 : 3,556.11 = 1,530.70 : x
  2. Step 2: Convert to fraction form
    2,578.84/3,556.11 = 1,530.70/x
  3. Step 3: Cross multiply
    2,578.84x = 3,556.11 × 1,530.70
  4. Step 4: Simplify right side
    2,578.84x = 5,443,337.58
  5. Step 5: Solve for x
    x = 5,443,337.58/2,578.84
  6. Step 6: Final answer
    x = 2,110.77

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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.