Home / 3,478.44-5,219.55-1,530.57

Finding the Fourth Proportional to 3,478.44, 5,219.55 and 1,530.57

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Solution

The fourth proportional to 3,478.44, 5,219.55 and 1,530.57 is: 2,296.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478.44 : 5,219.55 = 1,530.57 : x
  2. Step 2: Convert to fraction form
    3,478.44/5,219.55 = 1,530.57/x
  3. Step 3: Cross multiply
    3,478.44x = 5,219.55 × 1,530.57
  4. Step 4: Simplify right side
    3,478.44x = 7,988,886.64
  5. Step 5: Solve for x
    x = 7,988,886.64/3,478.44
  6. Step 6: Final answer
    x = 2,296.69

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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.