Home / 5,156.55-7,734.83-1,868.56

Finding the Fourth Proportional to 5,156.55, 7,734.83 and 1,868.56

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Solution

The fourth proportional to 5,156.55, 7,734.83 and 1,868.56 is: 2,802.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,156.55 : 7,734.83 = 1,868.56 : x
  2. Step 2: Convert to fraction form
    5,156.55/7,734.83 = 1,868.56/x
  3. Step 3: Cross multiply
    5,156.55x = 7,734.83 × 1,868.56
  4. Step 4: Simplify right side
    5,156.55x = 14,452,965.26
  5. Step 5: Solve for x
    x = 14,452,965.26/5,156.55
  6. Step 6: Final answer
    x = 2,802.84

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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.