Home / 4,647.87-6,419.32-3,153.20

Finding the Fourth Proportional to 4,647.87, 6,419.32 and 3,153.20

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Solution

The fourth proportional to 4,647.87, 6,419.32 and 3,153.20 is: 4,354.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,647.87 : 6,419.32 = 3,153.20 : x
  2. Step 2: Convert to fraction form
    4,647.87/6,419.32 = 3,153.20/x
  3. Step 3: Cross multiply
    4,647.87x = 6,419.32 × 3,153.20
  4. Step 4: Simplify right side
    4,647.87x = 20,241,359.84
  5. Step 5: Solve for x
    x = 20,241,359.84/4,647.87
  6. Step 6: Final answer
    x = 4,354.98

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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.