Home / 5,045.45-6,962.88-3,156.43

Finding the Fourth Proportional to 5,045.45, 6,962.88 and 3,156.43

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Solution

The fourth proportional to 5,045.45, 6,962.88 and 3,156.43 is: 4,355.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,045.45 : 6,962.88 = 3,156.43 : x
  2. Step 2: Convert to fraction form
    5,045.45/6,962.88 = 3,156.43/x
  3. Step 3: Cross multiply
    5,045.45x = 6,962.88 × 3,156.43
  4. Step 4: Simplify right side
    5,045.45x = 21,977,833.80
  5. Step 5: Solve for x
    x = 21,977,833.80/5,045.45
  6. Step 6: Final answer
    x = 4,355.97

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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.