Home / 2,479.26-3,420.84-1,430.72

Finding the Fourth Proportional to 2,479.26, 3,420.84 and 1,430.72

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Solution

The fourth proportional to 2,479.26, 3,420.84 and 1,430.72 is: 1,974.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479.26 : 3,420.84 = 1,430.72 : x
  2. Step 2: Convert to fraction form
    2,479.26/3,420.84 = 1,430.72/x
  3. Step 3: Cross multiply
    2,479.26x = 3,420.84 × 1,430.72
  4. Step 4: Simplify right side
    2,479.26x = 4,894,265.29
  5. Step 5: Solve for x
    x = 4,894,265.29/2,479.26
  6. Step 6: Final answer
    x = 1,974.08

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.