Home / 7,145.02-10,720.41-3,251.26

Finding the Fourth Proportional to 7,145.02, 10,720.41 and 3,251.26

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Solution

The fourth proportional to 7,145.02, 10,720.41 and 3,251.26 is: 4,878.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,145.02 : 10,720.41 = 3,251.26 : x
  2. Step 2: Convert to fraction form
    7,145.02/10,720.41 = 3,251.26/x
  3. Step 3: Cross multiply
    7,145.02x = 10,720.41 × 3,251.26
  4. Step 4: Simplify right side
    7,145.02x = 34,854,840.22
  5. Step 5: Solve for x
    x = 34,854,840.22/7,145.02
  6. Step 6: Final answer
    x = 4,878.20

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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.