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Finding the Fourth Proportional to 3,368.40, 4,648.40 and 2,041.76

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Solution

The fourth proportional to 3,368.40, 4,648.40 and 2,041.76 is: 2,817.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,368.40 : 4,648.40 = 2,041.76 : x
  2. Step 2: Convert to fraction form
    3,368.40/4,648.40 = 2,041.76/x
  3. Step 3: Cross multiply
    3,368.40x = 4,648.40 × 2,041.76
  4. Step 4: Simplify right side
    3,368.40x = 9,490,917.18
  5. Step 5: Solve for x
    x = 9,490,917.18/3,368.40
  6. Step 6: Final answer
    x = 2,817.63

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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.