Home / 2,479.61-3,421.89-1,360.65

Finding the Fourth Proportional to 2,479.61, 3,421.89 and 1,360.65

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Solution

The fourth proportional to 2,479.61, 3,421.89 and 1,360.65 is: 1,877.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479.61 : 3,421.89 = 1,360.65 : x
  2. Step 2: Convert to fraction form
    2,479.61/3,421.89 = 1,360.65/x
  3. Step 3: Cross multiply
    2,479.61x = 3,421.89 × 1,360.65
  4. Step 4: Simplify right side
    2,479.61x = 4,655,994.63
  5. Step 5: Solve for x
    x = 4,655,994.63/2,479.61
  6. Step 6: Final answer
    x = 1,877.72

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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.