Home / 1,930.16-2,665.51-1,648.75

Finding the Fourth Proportional to 1,930.16, 2,665.51 and 1,648.75

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Solution

The fourth proportional to 1,930.16, 2,665.51 and 1,648.75 is: 2,276.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,930.16 : 2,665.51 = 1,648.75 : x
  2. Step 2: Convert to fraction form
    1,930.16/2,665.51 = 1,648.75/x
  3. Step 3: Cross multiply
    1,930.16x = 2,665.51 × 1,648.75
  4. Step 4: Simplify right side
    1,930.16x = 4,394,753.82
  5. Step 5: Solve for x
    x = 4,394,753.82/1,930.16
  6. Step 6: Final answer
    x = 2,276.89

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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.