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Finding the Fourth Proportional to 2,945.25, 4,417.89 and 893.25

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Solution

The fourth proportional to 2,945.25, 4,417.89 and 893.25 is: 1,339.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.25 : 4,417.89 = 893.25 : x
  2. Step 2: Convert to fraction form
    2,945.25/4,417.89 = 893.25/x
  3. Step 3: Cross multiply
    2,945.25x = 4,417.89 × 893.25
  4. Step 4: Simplify right side
    2,945.25x = 3,946,280.24
  5. Step 5: Solve for x
    x = 3,946,280.24/2,945.25
  6. Step 6: Final answer
    x = 1,339.88

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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.