Home / 1,314.39-1,971.58-1,234.20

Finding the Fourth Proportional to 1,314.39, 1,971.58 and 1,234.20

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Solution

The fourth proportional to 1,314.39, 1,971.58 and 1,234.20 is: 1,851.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314.39 : 1,971.58 = 1,234.20 : x
  2. Step 2: Convert to fraction form
    1,314.39/1,971.58 = 1,234.20/x
  3. Step 3: Cross multiply
    1,314.39x = 1,971.58 × 1,234.20
  4. Step 4: Simplify right side
    1,314.39x = 2,433,324.04
  5. Step 5: Solve for x
    x = 2,433,324.04/1,314.39
  6. Step 6: Final answer
    x = 1,851.30

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1.5x scale

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.