Home / 2,900.89-4,003.18-1,574.59

Finding the Fourth Proportional to 2,900.89, 4,003.18 and 1,574.59

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Solution

The fourth proportional to 2,900.89, 4,003.18 and 1,574.59 is: 2,172.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,900.89 : 4,003.18 = 1,574.59 : x
  2. Step 2: Convert to fraction form
    2,900.89/4,003.18 = 1,574.59/x
  3. Step 3: Cross multiply
    2,900.89x = 4,003.18 × 1,574.59
  4. Step 4: Simplify right side
    2,900.89x = 6,303,367.20
  5. Step 5: Solve for x
    x = 6,303,367.20/2,900.89
  6. Step 6: Final answer
    x = 2,172.91

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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.