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Finding the Fourth Proportional to 2,648.68, 3,973.45 and 893.85

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Solution

The fourth proportional to 2,648.68, 3,973.45 and 893.85 is: 1,340.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,648.68 : 3,973.45 = 893.85 : x
  2. Step 2: Convert to fraction form
    2,648.68/3,973.45 = 893.85/x
  3. Step 3: Cross multiply
    2,648.68x = 3,973.45 × 893.85
  4. Step 4: Simplify right side
    2,648.68x = 3,551,668.28
  5. Step 5: Solve for x
    x = 3,551,668.28/2,648.68
  6. Step 6: Final answer
    x = 1,340.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.