Home / 3,039.10-4,559.19-847.78

Finding the Fourth Proportional to 3,039.10, 4,559.19 and 847.78

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Solution

The fourth proportional to 3,039.10, 4,559.19 and 847.78 is: 1,271.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,039.10 : 4,559.19 = 847.78 : x
  2. Step 2: Convert to fraction form
    3,039.10/4,559.19 = 847.78/x
  3. Step 3: Cross multiply
    3,039.10x = 4,559.19 × 847.78
  4. Step 4: Simplify right side
    3,039.10x = 3,865,190.10
  5. Step 5: Solve for x
    x = 3,865,190.10/3,039.10
  6. Step 6: Final answer
    x = 1,271.82

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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.