Home / 3,578.40-5,368.08-1,269.92

Finding the Fourth Proportional to 3,578.40, 5,368.08 and 1,269.92

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Solution

The fourth proportional to 3,578.40, 5,368.08 and 1,269.92 is: 1,905.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,578.40 : 5,368.08 = 1,269.92 : x
  2. Step 2: Convert to fraction form
    3,578.40/5,368.08 = 1,269.92/x
  3. Step 3: Cross multiply
    3,578.40x = 5,368.08 × 1,269.92
  4. Step 4: Simplify right side
    3,578.40x = 6,817,032.15
  5. Step 5: Solve for x
    x = 6,817,032.15/3,578.40
  6. Step 6: Final answer
    x = 1,905.05

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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.