Home / 5,555.61-8,329.48-2,780.29

Finding the Fourth Proportional to 5,555.61, 8,329.48 and 2,780.29

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Solution

The fourth proportional to 5,555.61, 8,329.48 and 2,780.29 is: 4,168.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,555.61 : 8,329.48 = 2,780.29 : x
  2. Step 2: Convert to fraction form
    5,555.61/8,329.48 = 2,780.29/x
  3. Step 3: Cross multiply
    5,555.61x = 8,329.48 × 2,780.29
  4. Step 4: Simplify right side
    5,555.61x = 23,158,369.95
  5. Step 5: Solve for x
    x = 23,158,369.95/5,555.61
  6. Step 6: Final answer
    x = 4,168.47

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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.