Home / 2,479.29-3,421.38-1,360.22

Finding the Fourth Proportional to 2,479.29, 3,421.38 and 1,360.22

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Solution

The fourth proportional to 2,479.29, 3,421.38 and 1,360.22 is: 1,877.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479.29 : 3,421.38 = 1,360.22 : x
  2. Step 2: Convert to fraction form
    2,479.29/3,421.38 = 1,360.22/x
  3. Step 3: Cross multiply
    2,479.29x = 3,421.38 × 1,360.22
  4. Step 4: Simplify right side
    2,479.29x = 4,653,838.06
  5. Step 5: Solve for x
    x = 4,653,838.06/2,479.29
  6. Step 6: Final answer
    x = 1,877.08

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1.5x scale

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.