Home / 7,718.32-11,577.47-2,787.94

Finding the Fourth Proportional to 7,718.32, 11,577.47 and 2,787.94

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Solution

The fourth proportional to 7,718.32, 11,577.47 and 2,787.94 is: 4,181.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,718.32 : 11,577.47 = 2,787.94 : x
  2. Step 2: Convert to fraction form
    7,718.32/11,577.47 = 2,787.94/x
  3. Step 3: Cross multiply
    7,718.32x = 11,577.47 × 2,787.94
  4. Step 4: Simplify right side
    7,718.32x = 32,277,219.88
  5. Step 5: Solve for x
    x = 32,277,219.88/7,718.32
  6. Step 6: Final answer
    x = 4,181.90

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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.