Home / 4,687.61-6,464.70-3,889.67

Finding the Fourth Proportional to 4,687.61, 6,464.70 and 3,889.67

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Solution

The fourth proportional to 4,687.61, 6,464.70 and 3,889.67 is: 5,364.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,687.61 : 6,464.70 = 3,889.67 : x
  2. Step 2: Convert to fraction form
    4,687.61/6,464.70 = 3,889.67/x
  3. Step 3: Cross multiply
    4,687.61x = 6,464.70 × 3,889.67
  4. Step 4: Simplify right side
    4,687.61x = 25,145,531.91
  5. Step 5: Solve for x
    x = 25,145,531.91/4,687.61
  6. Step 6: Final answer
    x = 5,364.26

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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.