Home / 5,487.66-8,216.91-4,289.76

Finding the Fourth Proportional to 5,487.66, 8,216.91 and 4,289.76

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Solution

The fourth proportional to 5,487.66, 8,216.91 and 4,289.76 is: 6,423.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,487.66 : 8,216.91 = 4,289.76 : x
  2. Step 2: Convert to fraction form
    5,487.66/8,216.91 = 4,289.76/x
  3. Step 3: Cross multiply
    5,487.66x = 8,216.91 × 4,289.76
  4. Step 4: Simplify right side
    5,487.66x = 35,248,571.84
  5. Step 5: Solve for x
    x = 35,248,571.84/5,487.66
  6. Step 6: Final answer
    x = 6,423.24

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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.