Home / 6,140.91-8,467.01-4,778.57

Finding the Fourth Proportional to 6,140.91, 8,467.01 and 4,778.57

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Solution

The fourth proportional to 6,140.91, 8,467.01 and 4,778.57 is: 6,588.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,140.91 : 8,467.01 = 4,778.57 : x
  2. Step 2: Convert to fraction form
    6,140.91/8,467.01 = 4,778.57/x
  3. Step 3: Cross multiply
    6,140.91x = 8,467.01 × 4,778.57
  4. Step 4: Simplify right side
    6,140.91x = 40,460,199.98
  5. Step 5: Solve for x
    x = 40,460,199.98/6,140.91
  6. Step 6: Final answer
    x = 6,588.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.