Home / 2,479.57-3,421.77-1,360.51

Finding the Fourth Proportional to 2,479.57, 3,421.77 and 1,360.51

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Solution

The fourth proportional to 2,479.57, 3,421.77 and 1,360.51 is: 1,877.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479.57 : 3,421.77 = 1,360.51 : x
  2. Step 2: Convert to fraction form
    2,479.57/3,421.77 = 1,360.51/x
  3. Step 3: Cross multiply
    2,479.57x = 3,421.77 × 1,360.51
  4. Step 4: Simplify right side
    2,479.57x = 4,655,352.30
  5. Step 5: Solve for x
    x = 4,655,352.30/2,479.57
  6. Step 6: Final answer
    x = 1,877.48

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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.