Home / 4,217.40-5,808.78-3,655.80

Finding the Fourth Proportional to 4,217.40, 5,808.78 and 3,655.80

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Solution

The fourth proportional to 4,217.40, 5,808.78 and 3,655.80 is: 5,035.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,217.40 : 5,808.78 = 3,655.80 : x
  2. Step 2: Convert to fraction form
    4,217.40/5,808.78 = 3,655.80/x
  3. Step 3: Cross multiply
    4,217.40x = 5,808.78 × 3,655.80
  4. Step 4: Simplify right side
    4,217.40x = 21,235,737.92
  5. Step 5: Solve for x
    x = 21,235,737.92/4,217.40
  6. Step 6: Final answer
    x = 5,035.27

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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.