Home / 7,787.91-11,681.73-1,944.45

Finding the Fourth Proportional to 7,787.91, 11,681.73 and 1,944.45

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Solution

The fourth proportional to 7,787.91, 11,681.73 and 1,944.45 is: 2,916.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,787.91 : 11,681.73 = 1,944.45 : x
  2. Step 2: Convert to fraction form
    7,787.91/11,681.73 = 1,944.45/x
  3. Step 3: Cross multiply
    7,787.91x = 11,681.73 × 1,944.45
  4. Step 4: Simplify right side
    7,787.91x = 22,714,539.90
  5. Step 5: Solve for x
    x = 22,714,539.90/7,787.91
  6. Step 6: Final answer
    x = 2,916.64

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Double scale
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Similar ratio
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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.