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Finding the Fourth Proportional to 3,059.59, 4,221.97 and 1,800.70

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Solution

The fourth proportional to 3,059.59, 4,221.97 and 1,800.70 is: 2,484.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,059.59 : 4,221.97 = 1,800.70 : x
  2. Step 2: Convert to fraction form
    3,059.59/4,221.97 = 1,800.70/x
  3. Step 3: Cross multiply
    3,059.59x = 4,221.97 × 1,800.70
  4. Step 4: Simplify right side
    3,059.59x = 7,602,501.38
  5. Step 5: Solve for x
    x = 7,602,501.38/3,059.59
  6. Step 6: Final answer
    x = 2,484.81

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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.