Home / 3,520.32-5,278.08-1,785.60

Finding the Fourth Proportional to 3,520.32, 5,278.08 and 1,785.60

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Solution

The fourth proportional to 3,520.32, 5,278.08 and 1,785.60 is: 2,677.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.32 : 5,278.08 = 1,785.60 : x
  2. Step 2: Convert to fraction form
    3,520.32/5,278.08 = 1,785.60/x
  3. Step 3: Cross multiply
    3,520.32x = 5,278.08 × 1,785.60
  4. Step 4: Simplify right side
    3,520.32x = 9,424,539.65
  5. Step 5: Solve for x
    x = 9,424,539.65/3,520.32
  6. Step 6: Final answer
    x = 2,677.18

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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.