Home / 1,987.18-2,979.61-600.23

Finding the Fourth Proportional to 1,987.18, 2,979.61 and 600.23

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Solution

The fourth proportional to 1,987.18, 2,979.61 and 600.23 is: 899.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987.18 : 2,979.61 = 600.23 : x
  2. Step 2: Convert to fraction form
    1,987.18/2,979.61 = 600.23/x
  3. Step 3: Cross multiply
    1,987.18x = 2,979.61 × 600.23
  4. Step 4: Simplify right side
    1,987.18x = 1,788,451.31
  5. Step 5: Solve for x
    x = 1,788,451.31/1,987.18
  6. Step 6: Final answer
    x = 899.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.