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Finding the Fourth Proportional to 2,931.03, 4,044.79 and 1,604.72

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Solution

The fourth proportional to 2,931.03, 4,044.79 and 1,604.72 is: 2,214.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931.03 : 4,044.79 = 1,604.72 : x
  2. Step 2: Convert to fraction form
    2,931.03/4,044.79 = 1,604.72/x
  3. Step 3: Cross multiply
    2,931.03x = 4,044.79 × 1,604.72
  4. Step 4: Simplify right side
    2,931.03x = 6,490,755.41
  5. Step 5: Solve for x
    x = 6,490,755.41/2,931.03
  6. Step 6: Final answer
    x = 2,214.50

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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.