Home / 4,921.61-6,788.34-2,930.63

Finding the Fourth Proportional to 4,921.61, 6,788.34 and 2,930.63

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Solution

The fourth proportional to 4,921.61, 6,788.34 and 2,930.63 is: 4,042.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921.61 : 6,788.34 = 2,930.63 : x
  2. Step 2: Convert to fraction form
    4,921.61/6,788.34 = 2,930.63/x
  3. Step 3: Cross multiply
    4,921.61x = 6,788.34 × 2,930.63
  4. Step 4: Simplify right side
    4,921.61x = 19,894,078.91
  5. Step 5: Solve for x
    x = 19,894,078.91/4,921.61
  6. Step 6: Final answer
    x = 4,042.19

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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.