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Finding the Fourth Proportional to 5,395.68, 7,447.02 and 3,157.44

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Solution

The fourth proportional to 5,395.68, 7,447.02 and 3,157.44 is: 4,357.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,395.68 : 7,447.02 = 3,157.44 : x
  2. Step 2: Convert to fraction form
    5,395.68/7,447.02 = 3,157.44/x
  3. Step 3: Cross multiply
    5,395.68x = 7,447.02 × 3,157.44
  4. Step 4: Simplify right side
    5,395.68x = 23,513,518.83
  5. Step 5: Solve for x
    x = 23,513,518.83/5,395.68
  6. Step 6: Final answer
    x = 4,357.84

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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.