Home / 1,987.02-2,979.56-600.09

Finding the Fourth Proportional to 1,987.02, 2,979.56 and 600.09

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Solution

The fourth proportional to 1,987.02, 2,979.56 and 600.09 is: 899.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987.02 : 2,979.56 = 600.09 : x
  2. Step 2: Convert to fraction form
    1,987.02/2,979.56 = 600.09/x
  3. Step 3: Cross multiply
    1,987.02x = 2,979.56 × 600.09
  4. Step 4: Simplify right side
    1,987.02x = 1,788,001.16
  5. Step 5: Solve for x
    x = 1,788,001.16/1,987.02
  6. Step 6: Final answer
    x = 899.84

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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.