Home / 2,479.34-3,421.48-1,360.28

Finding the Fourth Proportional to 2,479.34, 3,421.48 and 1,360.28

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Solution

The fourth proportional to 2,479.34, 3,421.48 and 1,360.28 is: 1,877.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479.34 : 3,421.48 = 1,360.28 : x
  2. Step 2: Convert to fraction form
    2,479.34/3,421.48 = 1,360.28/x
  3. Step 3: Cross multiply
    2,479.34x = 3,421.48 × 1,360.28
  4. Step 4: Simplify right side
    2,479.34x = 4,654,170.81
  5. Step 5: Solve for x
    x = 4,654,170.81/2,479.34
  6. Step 6: Final answer
    x = 1,877.18

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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.