Home / 3,396.90-4,687.50-1,904.80

Finding the Fourth Proportional to 3,396.90, 4,687.50 and 1,904.80

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Solution

The fourth proportional to 3,396.90, 4,687.50 and 1,904.80 is: 2,628.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,396.90 : 4,687.50 = 1,904.80 : x
  2. Step 2: Convert to fraction form
    3,396.90/4,687.50 = 1,904.80/x
  3. Step 3: Cross multiply
    3,396.90x = 4,687.50 × 1,904.80
  4. Step 4: Simplify right side
    3,396.90x = 8,928,750
  5. Step 5: Solve for x
    x = 8,928,750/3,396.90
  6. Step 6: Final answer
    x = 2,628.50

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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.