Home / 2,930.88-4,040.98-1,934.58

Finding the Fourth Proportional to 2,930.88, 4,040.98 and 1,934.58

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Solution

The fourth proportional to 2,930.88, 4,040.98 and 1,934.58 is: 2,667.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,930.88 : 4,040.98 = 1,934.58 : x
  2. Step 2: Convert to fraction form
    2,930.88/4,040.98 = 1,934.58/x
  3. Step 3: Cross multiply
    2,930.88x = 4,040.98 × 1,934.58
  4. Step 4: Simplify right side
    2,930.88x = 7,817,599.09
  5. Step 5: Solve for x
    x = 7,817,599.09/2,930.88
  6. Step 6: Final answer
    x = 2,667.32

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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.