Home / 2,987.16-4,478.94-1,753.98

Finding the Fourth Proportional to 2,987.16, 4,478.94 and 1,753.98

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Solution

The fourth proportional to 2,987.16, 4,478.94 and 1,753.98 is: 2,629.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,987.16 : 4,478.94 = 1,753.98 : x
  2. Step 2: Convert to fraction form
    2,987.16/4,478.94 = 1,753.98/x
  3. Step 3: Cross multiply
    2,987.16x = 4,478.94 × 1,753.98
  4. Step 4: Simplify right side
    2,987.16x = 7,855,971.18
  5. Step 5: Solve for x
    x = 7,855,971.18/2,987.16
  6. Step 6: Final answer
    x = 2,629.91

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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.