Home / 5,127.48-7,074.36-3,135.96

Finding the Fourth Proportional to 5,127.48, 7,074.36 and 3,135.96

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Solution

The fourth proportional to 5,127.48, 7,074.36 and 3,135.96 is: 4,326.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,127.48 : 7,074.36 = 3,135.96 : x
  2. Step 2: Convert to fraction form
    5,127.48/7,074.36 = 3,135.96/x
  3. Step 3: Cross multiply
    5,127.48x = 7,074.36 × 3,135.96
  4. Step 4: Simplify right side
    5,127.48x = 22,184,909.99
  5. Step 5: Solve for x
    x = 22,184,909.99/5,127.48
  6. Step 6: Final answer
    x = 4,326.67

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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.