Home / 2,930.25-4,043.76-2,184.87

Finding the Fourth Proportional to 2,930.25, 4,043.76 and 2,184.87

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Solution

The fourth proportional to 2,930.25, 4,043.76 and 2,184.87 is: 3,015.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,930.25 : 4,043.76 = 2,184.87 : x
  2. Step 2: Convert to fraction form
    2,930.25/4,043.76 = 2,184.87/x
  3. Step 3: Cross multiply
    2,930.25x = 4,043.76 × 2,184.87
  4. Step 4: Simplify right side
    2,930.25x = 8,835,089.91
  5. Step 5: Solve for x
    x = 8,835,089.91/2,930.25
  6. Step 6: Final answer
    x = 3,015.13

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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.