Home / 5,780.19-8,670.30-2,856.90

Finding the Fourth Proportional to 5,780.19, 8,670.30 and 2,856.90

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Solution

The fourth proportional to 5,780.19, 8,670.30 and 2,856.90 is: 4,285.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,780.19 : 8,670.30 = 2,856.90 : x
  2. Step 2: Convert to fraction form
    5,780.19/8,670.30 = 2,856.90/x
  3. Step 3: Cross multiply
    5,780.19x = 8,670.30 × 2,856.90
  4. Step 4: Simplify right side
    5,780.19x = 24,770,180.07
  5. Step 5: Solve for x
    x = 24,770,180.07/5,780.19
  6. Step 6: Final answer
    x = 4,285.36

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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.