Home / 5,555.30-8,333.39-1,857.55

Finding the Fourth Proportional to 5,555.30, 8,333.39 and 1,857.55

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Solution

The fourth proportional to 5,555.30, 8,333.39 and 1,857.55 is: 2,786.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,555.30 : 8,333.39 = 1,857.55 : x
  2. Step 2: Convert to fraction form
    5,555.30/8,333.39 = 1,857.55/x
  3. Step 3: Cross multiply
    5,555.30x = 8,333.39 × 1,857.55
  4. Step 4: Simplify right side
    5,555.30x = 15,479,677.61
  5. Step 5: Solve for x
    x = 15,479,677.61/5,555.30
  6. Step 6: Final answer
    x = 2,786.47

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1.5x scale

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.