Home / 2,508.85-3,462.30-1,389.85

Finding the Fourth Proportional to 2,508.85, 3,462.30 and 1,389.85

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Solution

The fourth proportional to 2,508.85, 3,462.30 and 1,389.85 is: 1,918.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,508.85 : 3,462.30 = 1,389.85 : x
  2. Step 2: Convert to fraction form
    2,508.85/3,462.30 = 1,389.85/x
  3. Step 3: Cross multiply
    2,508.85x = 3,462.30 × 1,389.85
  4. Step 4: Simplify right side
    2,508.85x = 4,812,077.66
  5. Step 5: Solve for x
    x = 4,812,077.66/2,508.85
  6. Step 6: Final answer
    x = 1,918.04

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1.5x scale

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.