Home / 2,479.25-3,421.42-1,360.18

Finding the Fourth Proportional to 2,479.25, 3,421.42 and 1,360.18

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Solution

The fourth proportional to 2,479.25, 3,421.42 and 1,360.18 is: 1,877.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479.25 : 3,421.42 = 1,360.18 : x
  2. Step 2: Convert to fraction form
    2,479.25/3,421.42 = 1,360.18/x
  3. Step 3: Cross multiply
    2,479.25x = 3,421.42 × 1,360.18
  4. Step 4: Simplify right side
    2,479.25x = 4,653,740.09
  5. Step 5: Solve for x
    x = 4,653,740.09/2,479.25
  6. Step 6: Final answer
    x = 1,877.07

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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.