Home / 7,787.79-11,681.63-1,944.36

Finding the Fourth Proportional to 7,787.79, 11,681.63 and 1,944.36

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Solution

The fourth proportional to 7,787.79, 11,681.63 and 1,944.36 is: 2,916.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,787.79 : 11,681.63 = 1,944.36 : x
  2. Step 2: Convert to fraction form
    7,787.79/11,681.63 = 1,944.36/x
  3. Step 3: Cross multiply
    7,787.79x = 11,681.63 × 1,944.36
  4. Step 4: Simplify right side
    7,787.79x = 22,713,284.39
  5. Step 5: Solve for x
    x = 22,713,284.39/7,787.79
  6. Step 6: Final answer
    x = 2,916.53

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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.