Home / 2,479.18-3,421.31-1,360.10

Finding the Fourth Proportional to 2,479.18, 3,421.31 and 1,360.10

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Solution

The fourth proportional to 2,479.18, 3,421.31 and 1,360.10 is: 1,876.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479.18 : 3,421.31 = 1,360.10 : x
  2. Step 2: Convert to fraction form
    2,479.18/3,421.31 = 1,360.10/x
  3. Step 3: Cross multiply
    2,479.18x = 3,421.31 × 1,360.10
  4. Step 4: Simplify right side
    2,479.18x = 4,653,312.65
  5. Step 5: Solve for x
    x = 4,653,312.65/2,479.18
  6. Step 6: Final answer
    x = 1,876.96

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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.