Home / 1,260.17-1,887.33-1,216.39

Finding the Fourth Proportional to 1,260.17, 1,887.33 and 1,216.39

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Solution

The fourth proportional to 1,260.17, 1,887.33 and 1,216.39 is: 1,821.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260.17 : 1,887.33 = 1,216.39 : x
  2. Step 2: Convert to fraction form
    1,260.17/1,887.33 = 1,216.39/x
  3. Step 3: Cross multiply
    1,260.17x = 1,887.33 × 1,216.39
  4. Step 4: Simplify right side
    1,260.17x = 2,295,729.34
  5. Step 5: Solve for x
    x = 2,295,729.34/1,260.17
  6. Step 6: Final answer
    x = 1,821.76

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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.