Home / 2,900.91-4,003.22-1,574.58

Finding the Fourth Proportional to 2,900.91, 4,003.22 and 1,574.58

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Solution

The fourth proportional to 2,900.91, 4,003.22 and 1,574.58 is: 2,172.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,900.91 : 4,003.22 = 1,574.58 : x
  2. Step 2: Convert to fraction form
    2,900.91/4,003.22 = 1,574.58/x
  3. Step 3: Cross multiply
    2,900.91x = 4,003.22 × 1,574.58
  4. Step 4: Simplify right side
    2,900.91x = 6,303,382.27
  5. Step 5: Solve for x
    x = 6,303,382.27/2,900.91
  6. Step 6: Final answer
    x = 2,172.90

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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.