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Finding the Fourth Proportional to 3,572.65, 4,930.41 and 2,080.32

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Solution

The fourth proportional to 3,572.65, 4,930.41 and 2,080.32 is: 2,870.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,572.65 : 4,930.41 = 2,080.32 : x
  2. Step 2: Convert to fraction form
    3,572.65/4,930.41 = 2,080.32/x
  3. Step 3: Cross multiply
    3,572.65x = 4,930.41 × 2,080.32
  4. Step 4: Simplify right side
    3,572.65x = 10,256,846.82
  5. Step 5: Solve for x
    x = 10,256,846.82/3,572.65
  6. Step 6: Final answer
    x = 2,870.94

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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.