Home / 2,389.44-3,579.60-1,866.98

Finding the Fourth Proportional to 2,389.44, 3,579.60 and 1,866.98

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Solution

The fourth proportional to 2,389.44, 3,579.60 and 1,866.98 is: 2,796.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,389.44 : 3,579.60 = 1,866.98 : x
  2. Step 2: Convert to fraction form
    2,389.44/3,579.60 = 1,866.98/x
  3. Step 3: Cross multiply
    2,389.44x = 3,579.60 × 1,866.98
  4. Step 4: Simplify right side
    2,389.44x = 6,683,041.61
  5. Step 5: Solve for x
    x = 6,683,041.61/2,389.44
  6. Step 6: Final answer
    x = 2,796.91

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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.