Home / 1,845.57-2,767.40-612.54

Finding the Fourth Proportional to 1,845.57, 2,767.40 and 612.54

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Solution

The fourth proportional to 1,845.57, 2,767.40 and 612.54 is: 918.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,845.57 : 2,767.40 = 612.54 : x
  2. Step 2: Convert to fraction form
    1,845.57/2,767.40 = 612.54/x
  3. Step 3: Cross multiply
    1,845.57x = 2,767.40 × 612.54
  4. Step 4: Simplify right side
    1,845.57x = 1,695,143.20
  5. Step 5: Solve for x
    x = 1,695,143.20/1,845.57
  6. Step 6: Final answer
    x = 918.49

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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.