Home / 5,137.60-7,089.08-3,012.96

Finding the Fourth Proportional to 5,137.60, 7,089.08 and 3,012.96

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Solution

The fourth proportional to 5,137.60, 7,089.08 and 3,012.96 is: 4,157.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,137.60 : 7,089.08 = 3,012.96 : x
  2. Step 2: Convert to fraction form
    5,137.60/7,089.08 = 3,012.96/x
  3. Step 3: Cross multiply
    5,137.60x = 7,089.08 × 3,012.96
  4. Step 4: Simplify right side
    5,137.60x = 21,359,114.48
  5. Step 5: Solve for x
    x = 21,359,114.48/5,137.60
  6. Step 6: Final answer
    x = 4,157.41

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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.