Home / 1,520.15-2,277.43-1,226.70

Finding the Fourth Proportional to 1,520.15, 2,277.43 and 1,226.70

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Solution

The fourth proportional to 1,520.15, 2,277.43 and 1,226.70 is: 1,837.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520.15 : 2,277.43 = 1,226.70 : x
  2. Step 2: Convert to fraction form
    1,520.15/2,277.43 = 1,226.70/x
  3. Step 3: Cross multiply
    1,520.15x = 2,277.43 × 1,226.70
  4. Step 4: Simplify right side
    1,520.15x = 2,793,720.31
  5. Step 5: Solve for x
    x = 2,793,720.31/1,520.15
  6. Step 6: Final answer
    x = 1,837.80

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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.