Home / 6,291.80-8,667.68-4,399.85

Finding the Fourth Proportional to 6,291.80, 8,667.68 and 4,399.85

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Solution

The fourth proportional to 6,291.80, 8,667.68 and 4,399.85 is: 6,061.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,291.80 : 8,667.68 = 4,399.85 : x
  2. Step 2: Convert to fraction form
    6,291.80/8,667.68 = 4,399.85/x
  3. Step 3: Cross multiply
    6,291.80x = 8,667.68 × 4,399.85
  4. Step 4: Simplify right side
    6,291.80x = 38,136,491.85
  5. Step 5: Solve for x
    x = 38,136,491.85/6,291.80
  6. Step 6: Final answer
    x = 6,061.30

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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.