Home / 5,485.77-8,229.51-1,787.14

Finding the Fourth Proportional to 5,485.77, 8,229.51 and 1,787.14

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Solution

The fourth proportional to 5,485.77, 8,229.51 and 1,787.14 is: 2,680.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,485.77 : 8,229.51 = 1,787.14 : x
  2. Step 2: Convert to fraction form
    5,485.77/8,229.51 = 1,787.14/x
  3. Step 3: Cross multiply
    5,485.77x = 8,229.51 × 1,787.14
  4. Step 4: Simplify right side
    5,485.77x = 14,707,277.57
  5. Step 5: Solve for x
    x = 14,707,277.57/5,485.77
  6. Step 6: Final answer
    x = 2,680.99

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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.