Home / 6,780.61-10,169.55-4,281.05

Finding the Fourth Proportional to 6,780.61, 10,169.55 and 4,281.05

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Solution

The fourth proportional to 6,780.61, 10,169.55 and 4,281.05 is: 6,420.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,780.61 : 10,169.55 = 4,281.05 : x
  2. Step 2: Convert to fraction form
    6,780.61/10,169.55 = 4,281.05/x
  3. Step 3: Cross multiply
    6,780.61x = 10,169.55 × 4,281.05
  4. Step 4: Simplify right side
    6,780.61x = 43,536,377.45
  5. Step 5: Solve for x
    x = 43,536,377.45/6,780.61
  6. Step 6: Final answer
    x = 6,420.72

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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.