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Finding the Fourth Proportional to 5,578.71, 8,368.94 and 2,290.92

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Solution

The fourth proportional to 5,578.71, 8,368.94 and 2,290.92 is: 3,436.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,578.71 : 8,368.94 = 2,290.92 : x
  2. Step 2: Convert to fraction form
    5,578.71/8,368.94 = 2,290.92/x
  3. Step 3: Cross multiply
    5,578.71x = 8,368.94 × 2,290.92
  4. Step 4: Simplify right side
    5,578.71x = 19,172,572.02
  5. Step 5: Solve for x
    x = 19,172,572.02/5,578.71
  6. Step 6: Final answer
    x = 3,436.74

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1.5x scale

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.