Home / 2,899.36-4,351.60-1,988

Finding the Fourth Proportional to 2,899.36, 4,351.60 and 1,988

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Solution

The fourth proportional to 2,899.36, 4,351.60 and 1,988 is: 2,983.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,899.36 : 4,351.60 = 1,988 : x
  2. Step 2: Convert to fraction form
    2,899.36/4,351.60 = 1,988/x
  3. Step 3: Cross multiply
    2,899.36x = 4,351.60 × 1,988
  4. Step 4: Simplify right side
    2,899.36x = 8,650,980.80
  5. Step 5: Solve for x
    x = 8,650,980.80/2,899.36
  6. Step 6: Final answer
    x = 2,983.76

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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.