Home / 3,397.15-4,688.00-1,905.06

Finding the Fourth Proportional to 3,397.15, 4,688.00 and 1,905.06

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Solution

The fourth proportional to 3,397.15, 4,688.00 and 1,905.06 is: 2,628.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,397.15 : 4,688.00 = 1,905.06 : x
  2. Step 2: Convert to fraction form
    3,397.15/4,688.00 = 1,905.06/x
  3. Step 3: Cross multiply
    3,397.15x = 4,688.00 × 1,905.06
  4. Step 4: Simplify right side
    3,397.15x = 8,930,910.11
  5. Step 5: Solve for x
    x = 8,930,910.11/3,397.15
  6. Step 6: Final answer
    x = 2,628.95

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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.