Home / 6,820.40-10,216.02-4,215.44

Finding the Fourth Proportional to 6,820.40, 10,216.02 and 4,215.44

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Solution

The fourth proportional to 6,820.40, 10,216.02 and 4,215.44 is: 6,314.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,820.40 : 10,216.02 = 4,215.44 : x
  2. Step 2: Convert to fraction form
    6,820.40/10,216.02 = 4,215.44/x
  3. Step 3: Cross multiply
    6,820.40x = 10,216.02 × 4,215.44
  4. Step 4: Simplify right side
    6,820.40x = 43,065,019.35
  5. Step 5: Solve for x
    x = 43,065,019.35/6,820.40
  6. Step 6: Final answer
    x = 6,314.15

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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.