Home / 5,138.14-7,090.23-2,900.56

Finding the Fourth Proportional to 5,138.14, 7,090.23 and 2,900.56

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Solution

The fourth proportional to 5,138.14, 7,090.23 and 2,900.56 is: 4,002.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,138.14 : 7,090.23 = 2,900.56 : x
  2. Step 2: Convert to fraction form
    5,138.14/7,090.23 = 2,900.56/x
  3. Step 3: Cross multiply
    5,138.14x = 7,090.23 × 2,900.56
  4. Step 4: Simplify right side
    5,138.14x = 20,565,637.53
  5. Step 5: Solve for x
    x = 20,565,637.53/5,138.14
  6. Step 6: Final answer
    x = 4,002.55

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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.