Home / 5,311.45-7,314.96-5,196.70

Finding the Fourth Proportional to 5,311.45, 7,314.96 and 5,196.70

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Solution

The fourth proportional to 5,311.45, 7,314.96 and 5,196.70 is: 7,156.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311.45 : 7,314.96 = 5,196.70 : x
  2. Step 2: Convert to fraction form
    5,311.45/7,314.96 = 5,196.70/x
  3. Step 3: Cross multiply
    5,311.45x = 7,314.96 × 5,196.70
  4. Step 4: Simplify right side
    5,311.45x = 38,013,652.63
  5. Step 5: Solve for x
    x = 38,013,652.63/5,311.45
  6. Step 6: Final answer
    x = 7,156.93

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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.