Home / 2,254.48-3,111.68-1,310.40

Finding the Fourth Proportional to 2,254.48, 3,111.68 and 1,310.40

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Solution

The fourth proportional to 2,254.48, 3,111.68 and 1,310.40 is: 1,808.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,254.48 : 3,111.68 = 1,310.40 : x
  2. Step 2: Convert to fraction form
    2,254.48/3,111.68 = 1,310.40/x
  3. Step 3: Cross multiply
    2,254.48x = 3,111.68 × 1,310.40
  4. Step 4: Simplify right side
    2,254.48x = 4,077,545.47
  5. Step 5: Solve for x
    x = 4,077,545.47/2,254.48
  6. Step 6: Final answer
    x = 1,808.64

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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.