Home / 3,345.28-4,616.20-1,948.12

Finding the Fourth Proportional to 3,345.28, 4,616.20 and 1,948.12

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Solution

The fourth proportional to 3,345.28, 4,616.20 and 1,948.12 is: 2,688.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,345.28 : 4,616.20 = 1,948.12 : x
  2. Step 2: Convert to fraction form
    3,345.28/4,616.20 = 1,948.12/x
  3. Step 3: Cross multiply
    3,345.28x = 4,616.20 × 1,948.12
  4. Step 4: Simplify right side
    3,345.28x = 8,992,911.54
  5. Step 5: Solve for x
    x = 8,992,911.54/3,345.28
  6. Step 6: Final answer
    x = 2,688.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.