Home / 2,107.16-2,904.38-1,930.68

Finding the Fourth Proportional to 2,107.16, 2,904.38 and 1,930.68

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Solution

The fourth proportional to 2,107.16, 2,904.38 and 1,930.68 is: 2,661.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,107.16 : 2,904.38 = 1,930.68 : x
  2. Step 2: Convert to fraction form
    2,107.16/2,904.38 = 1,930.68/x
  3. Step 3: Cross multiply
    2,107.16x = 2,904.38 × 1,930.68
  4. Step 4: Simplify right side
    2,107.16x = 5,607,428.38
  5. Step 5: Solve for x
    x = 5,607,428.38/2,107.16
  6. Step 6: Final answer
    x = 2,661.13

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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.