Home / 2,479.45-3,421.67-1,360.37

Finding the Fourth Proportional to 2,479.45, 3,421.67 and 1,360.37

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Solution

The fourth proportional to 2,479.45, 3,421.67 and 1,360.37 is: 1,877.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479.45 : 3,421.67 = 1,360.37 : x
  2. Step 2: Convert to fraction form
    2,479.45/3,421.67 = 1,360.37/x
  3. Step 3: Cross multiply
    2,479.45x = 3,421.67 × 1,360.37
  4. Step 4: Simplify right side
    2,479.45x = 4,654,721.81
  5. Step 5: Solve for x
    x = 4,654,721.81/2,479.45
  6. Step 6: Final answer
    x = 1,877.32

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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.