Home / 1,509.22-2,262.46-1,118.75

Finding the Fourth Proportional to 1,509.22, 2,262.46 and 1,118.75

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Solution

The fourth proportional to 1,509.22, 2,262.46 and 1,118.75 is: 1,677.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,509.22 : 2,262.46 = 1,118.75 : x
  2. Step 2: Convert to fraction form
    1,509.22/2,262.46 = 1,118.75/x
  3. Step 3: Cross multiply
    1,509.22x = 2,262.46 × 1,118.75
  4. Step 4: Simplify right side
    1,509.22x = 2,531,132.08
  5. Step 5: Solve for x
    x = 2,531,132.08/1,509.22
  6. Step 6: Final answer
    x = 1,677.11

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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.