Home / 2,479.27-3,421.40-1,360.22

Finding the Fourth Proportional to 2,479.27, 3,421.40 and 1,360.22

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Solution

The fourth proportional to 2,479.27, 3,421.40 and 1,360.22 is: 1,877.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479.27 : 3,421.40 = 1,360.22 : x
  2. Step 2: Convert to fraction form
    2,479.27/3,421.40 = 1,360.22/x
  3. Step 3: Cross multiply
    2,479.27x = 3,421.40 × 1,360.22
  4. Step 4: Simplify right side
    2,479.27x = 4,653,856.71
  5. Step 5: Solve for x
    x = 4,653,856.71/2,479.27
  6. Step 6: Final answer
    x = 1,877.11

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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.