Home / 1,788.16-2,467.58-1,002.20

Finding the Fourth Proportional to 1,788.16, 2,467.58 and 1,002.20

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Solution

The fourth proportional to 1,788.16, 2,467.58 and 1,002.20 is: 1,382.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,788.16 : 2,467.58 = 1,002.20 : x
  2. Step 2: Convert to fraction form
    1,788.16/2,467.58 = 1,002.20/x
  3. Step 3: Cross multiply
    1,788.16x = 2,467.58 × 1,002.20
  4. Step 4: Simplify right side
    1,788.16x = 2,473,008.68
  5. Step 5: Solve for x
    x = 2,473,008.68/1,788.16
  6. Step 6: Final answer
    x = 1,382.99

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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.