Home / 3,787.35-5,681.65-1,190.13

Finding the Fourth Proportional to 3,787.35, 5,681.65 and 1,190.13

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Solution

The fourth proportional to 3,787.35, 5,681.65 and 1,190.13 is: 1,785.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,787.35 : 5,681.65 = 1,190.13 : x
  2. Step 2: Convert to fraction form
    3,787.35/5,681.65 = 1,190.13/x
  3. Step 3: Cross multiply
    3,787.35x = 5,681.65 × 1,190.13
  4. Step 4: Simplify right side
    3,787.35x = 6,761,902.11
  5. Step 5: Solve for x
    x = 6,761,902.11/3,787.35
  6. Step 6: Final answer
    x = 1,785.39

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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.