Home / 4,618.55-6,378.90-3,365.21

Finding the Fourth Proportional to 4,618.55, 6,378.90 and 3,365.21

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Solution

The fourth proportional to 4,618.55, 6,378.90 and 3,365.21 is: 4,647.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,618.55 : 6,378.90 = 3,365.21 : x
  2. Step 2: Convert to fraction form
    4,618.55/6,378.90 = 3,365.21/x
  3. Step 3: Cross multiply
    4,618.55x = 6,378.90 × 3,365.21
  4. Step 4: Simplify right side
    4,618.55x = 21,466,306.17
  5. Step 5: Solve for x
    x = 21,466,306.17/4,618.55
  6. Step 6: Final answer
    x = 4,647.85

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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.