Home / 5,313.12-7,325.18-3,421.32

Finding the Fourth Proportional to 5,313.12, 7,325.18 and 3,421.32

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Solution

The fourth proportional to 5,313.12, 7,325.18 and 3,421.32 is: 4,716.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,313.12 : 7,325.18 = 3,421.32 : x
  2. Step 2: Convert to fraction form
    5,313.12/7,325.18 = 3,421.32/x
  3. Step 3: Cross multiply
    5,313.12x = 7,325.18 × 3,421.32
  4. Step 4: Simplify right side
    5,313.12x = 25,061,784.84
  5. Step 5: Solve for x
    x = 25,061,784.84/5,313.12
  6. Step 6: Final answer
    x = 4,716.96

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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.