Home / 3,478.23-5,219.69-2,309.58

Finding the Fourth Proportional to 3,478.23, 5,219.69 and 2,309.58

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Solution

The fourth proportional to 3,478.23, 5,219.69 and 2,309.58 is: 3,465.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478.23 : 5,219.69 = 2,309.58 : x
  2. Step 2: Convert to fraction form
    3,478.23/5,219.69 = 2,309.58/x
  3. Step 3: Cross multiply
    3,478.23x = 5,219.69 × 2,309.58
  4. Step 4: Simplify right side
    3,478.23x = 12,055,280.08
  5. Step 5: Solve for x
    x = 12,055,280.08/3,478.23
  6. Step 6: Final answer
    x = 3,465.92

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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.