Home / 2,900.39-4,002.49-1,574.08

Finding the Fourth Proportional to 2,900.39, 4,002.49 and 1,574.08

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Solution

The fourth proportional to 2,900.39, 4,002.49 and 1,574.08 is: 2,172.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,900.39 : 4,002.49 = 1,574.08 : x
  2. Step 2: Convert to fraction form
    2,900.39/4,002.49 = 1,574.08/x
  3. Step 3: Cross multiply
    2,900.39x = 4,002.49 × 1,574.08
  4. Step 4: Simplify right side
    2,900.39x = 6,300,246.43
  5. Step 5: Solve for x
    x = 6,300,246.43/2,900.39
  6. Step 6: Final answer
    x = 2,172.21

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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.