Home / 3,318.77-4,580.55-1,903.30

Finding the Fourth Proportional to 3,318.77, 4,580.55 and 1,903.30

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Solution

The fourth proportional to 3,318.77, 4,580.55 and 1,903.30 is: 2,626.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.77 : 4,580.55 = 1,903.30 : x
  2. Step 2: Convert to fraction form
    3,318.77/4,580.55 = 1,903.30/x
  3. Step 3: Cross multiply
    3,318.77x = 4,580.55 × 1,903.30
  4. Step 4: Simplify right side
    3,318.77x = 8,718,149.36
  5. Step 5: Solve for x
    x = 8,718,149.36/3,318.77
  6. Step 6: Final answer
    x = 2,626.92

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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.