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Finding the Fourth Proportional to 3,576.77, 4,935.13 and 2,160.68

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Solution

The fourth proportional to 3,576.77, 4,935.13 and 2,160.68 is: 2,981.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,576.77 : 4,935.13 = 2,160.68 : x
  2. Step 2: Convert to fraction form
    3,576.77/4,935.13 = 2,160.68/x
  3. Step 3: Cross multiply
    3,576.77x = 4,935.13 × 2,160.68
  4. Step 4: Simplify right side
    3,576.77x = 10,663,225.89
  5. Step 5: Solve for x
    x = 10,663,225.89/3,576.77
  6. Step 6: Final answer
    x = 2,981.25

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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.