Home / 2,310.08-3,478.68-1,665.28

Finding the Fourth Proportional to 2,310.08, 3,478.68 and 1,665.28

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Solution

The fourth proportional to 2,310.08, 3,478.68 and 1,665.28 is: 2,507.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,310.08 : 3,478.68 = 1,665.28 : x
  2. Step 2: Convert to fraction form
    2,310.08/3,478.68 = 1,665.28/x
  3. Step 3: Cross multiply
    2,310.08x = 3,478.68 × 1,665.28
  4. Step 4: Simplify right side
    2,310.08x = 5,792,976.23
  5. Step 5: Solve for x
    x = 5,792,976.23/2,310.08
  6. Step 6: Final answer
    x = 2,507.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.