Home / 5,645.73-8,466.57-1,947

Finding the Fourth Proportional to 5,645.73, 8,466.57 and 1,947

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Solution

The fourth proportional to 5,645.73, 8,466.57 and 1,947 is: 2,919.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,645.73 : 8,466.57 = 1,947 : x
  2. Step 2: Convert to fraction form
    5,645.73/8,466.57 = 1,947/x
  3. Step 3: Cross multiply
    5,645.73x = 8,466.57 × 1,947
  4. Step 4: Simplify right side
    5,645.73x = 16,484,411.79
  5. Step 5: Solve for x
    x = 16,484,411.79/5,645.73
  6. Step 6: Final answer
    x = 2,919.80

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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.