Home / 5,136.40-7,088.34-3,040.12

Finding the Fourth Proportional to 5,136.40, 7,088.34 and 3,040.12

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Solution

The fourth proportional to 5,136.40, 7,088.34 and 3,040.12 is: 4,195.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,136.40 : 7,088.34 = 3,040.12 : x
  2. Step 2: Convert to fraction form
    5,136.40/7,088.34 = 3,040.12/x
  3. Step 3: Cross multiply
    5,136.40x = 7,088.34 × 3,040.12
  4. Step 4: Simplify right side
    5,136.40x = 21,549,404.20
  5. Step 5: Solve for x
    x = 21,549,404.20/5,136.40
  6. Step 6: Final answer
    x = 4,195.43

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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.