Home / 1,351.10-2,025.12-611.34

Finding the Fourth Proportional to 1,351.10, 2,025.12 and 611.34

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Solution

The fourth proportional to 1,351.10, 2,025.12 and 611.34 is: 916.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,351.10 : 2,025.12 = 611.34 : x
  2. Step 2: Convert to fraction form
    1,351.10/2,025.12 = 611.34/x
  3. Step 3: Cross multiply
    1,351.10x = 2,025.12 × 611.34
  4. Step 4: Simplify right side
    1,351.10x = 1,238,036.86
  5. Step 5: Solve for x
    x = 1,238,036.86/1,351.10
  6. Step 6: Final answer
    x = 916.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.