Home / 4,267.05-6,400.11-1,147.35

Finding the Fourth Proportional to 4,267.05, 6,400.11 and 1,147.35

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Solution

The fourth proportional to 4,267.05, 6,400.11 and 1,147.35 is: 1,720.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,267.05 : 6,400.11 = 1,147.35 : x
  2. Step 2: Convert to fraction form
    4,267.05/6,400.11 = 1,147.35/x
  3. Step 3: Cross multiply
    4,267.05x = 6,400.11 × 1,147.35
  4. Step 4: Simplify right side
    4,267.05x = 7,343,166.21
  5. Step 5: Solve for x
    x = 7,343,166.21/4,267.05
  6. Step 6: Final answer
    x = 1,720.90

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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.