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Finding the Fourth Proportional to 3,578.58, 4,947.32 and 3,545.76

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Solution

The fourth proportional to 3,578.58, 4,947.32 and 3,545.76 is: 4,901.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,578.58 : 4,947.32 = 3,545.76 : x
  2. Step 2: Convert to fraction form
    3,578.58/4,947.32 = 3,545.76/x
  3. Step 3: Cross multiply
    3,578.58x = 4,947.32 × 3,545.76
  4. Step 4: Simplify right side
    3,578.58x = 17,542,009.36
  5. Step 5: Solve for x
    x = 17,542,009.36/3,578.58
  6. Step 6: Final answer
    x = 4,901.95

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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.