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Finding the Fourth Proportional to 3,604.71, 4,975.74 and 2,113.11

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Solution

The fourth proportional to 3,604.71, 4,975.74 and 2,113.11 is: 2,916.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,604.71 : 4,975.74 = 2,113.11 : x
  2. Step 2: Convert to fraction form
    3,604.71/4,975.74 = 2,113.11/x
  3. Step 3: Cross multiply
    3,604.71x = 4,975.74 × 2,113.11
  4. Step 4: Simplify right side
    3,604.71x = 10,514,285.95
  5. Step 5: Solve for x
    x = 10,514,285.95/3,604.71
  6. Step 6: Final answer
    x = 2,916.82

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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.