Home / 5,561.80-8,342.72-1,863.36

Finding the Fourth Proportional to 5,561.80, 8,342.72 and 1,863.36

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Solution

The fourth proportional to 5,561.80, 8,342.72 and 1,863.36 is: 2,795.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,561.80 : 8,342.72 = 1,863.36 : x
  2. Step 2: Convert to fraction form
    5,561.80/8,342.72 = 1,863.36/x
  3. Step 3: Cross multiply
    5,561.80x = 8,342.72 × 1,863.36
  4. Step 4: Simplify right side
    5,561.80x = 15,545,490.74
  5. Step 5: Solve for x
    x = 15,545,490.74/5,561.80
  6. Step 6: Final answer
    x = 2,795.05

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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.