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Finding the Fourth Proportional to 1,763.02, 2,433 and 977.11

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Solution

The fourth proportional to 1,763.02, 2,433 and 977.11 is: 1,348.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,763.02 : 2,433 = 977.11 : x
  2. Step 2: Convert to fraction form
    1,763.02/2,433 = 977.11/x
  3. Step 3: Cross multiply
    1,763.02x = 2,433 × 977.11
  4. Step 4: Simplify right side
    1,763.02x = 2,377,308.63
  5. Step 5: Solve for x
    x = 2,377,308.63/1,763.02
  6. Step 6: Final answer
    x = 1,348.43

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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.