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Finding the Fourth Proportional to 1,800.05, 2,483.22 and 1,053.55

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Solution

The fourth proportional to 1,800.05, 2,483.22 and 1,053.55 is: 1,453.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,800.05 : 2,483.22 = 1,053.55 : x
  2. Step 2: Convert to fraction form
    1,800.05/2,483.22 = 1,053.55/x
  3. Step 3: Cross multiply
    1,800.05x = 2,483.22 × 1,053.55
  4. Step 4: Simplify right side
    1,800.05x = 2,616,181.38
  5. Step 5: Solve for x
    x = 2,616,181.38/1,800.05
  6. Step 6: Final answer
    x = 1,453.39

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Double scale
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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.