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Finding the Fourth Proportional to 3,165.74, 4,368.70 and 1,768.49

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Solution

The fourth proportional to 3,165.74, 4,368.70 and 1,768.49 is: 2,440.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,165.74 : 4,368.70 = 1,768.49 : x
  2. Step 2: Convert to fraction form
    3,165.74/4,368.70 = 1,768.49/x
  3. Step 3: Cross multiply
    3,165.74x = 4,368.70 × 1,768.49
  4. Step 4: Simplify right side
    3,165.74x = 7,726,002.26
  5. Step 5: Solve for x
    x = 7,726,002.26/3,165.74
  6. Step 6: Final answer
    x = 2,440.50

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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.