Home / 6,638.99-9,158.01-4,150.67

Finding the Fourth Proportional to 6,638.99, 9,158.01 and 4,150.67

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Solution

The fourth proportional to 6,638.99, 9,158.01 and 4,150.67 is: 5,725.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,638.99 : 9,158.01 = 4,150.67 : x
  2. Step 2: Convert to fraction form
    6,638.99/9,158.01 = 4,150.67/x
  3. Step 3: Cross multiply
    6,638.99x = 9,158.01 × 4,150.67
  4. Step 4: Simplify right side
    6,638.99x = 38,011,877.37
  5. Step 5: Solve for x
    x = 38,011,877.37/6,638.99
  6. Step 6: Final answer
    x = 5,725.55

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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.