Home / 3,787.61-5,228.30-2,372.90

Finding the Fourth Proportional to 3,787.61, 5,228.30 and 2,372.90

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Solution

The fourth proportional to 3,787.61, 5,228.30 and 2,372.90 is: 3,275.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,787.61 : 5,228.30 = 2,372.90 : x
  2. Step 2: Convert to fraction form
    3,787.61/5,228.30 = 2,372.90/x
  3. Step 3: Cross multiply
    3,787.61x = 5,228.30 × 2,372.90
  4. Step 4: Simplify right side
    3,787.61x = 12,406,199.51
  5. Step 5: Solve for x
    x = 12,406,199.51/3,787.61
  6. Step 6: Final answer
    x = 3,275.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.