Home / 6,445.22-9,670.13-3,977.17

Finding the Fourth Proportional to 6,445.22, 9,670.13 and 3,977.17

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Solution

The fourth proportional to 6,445.22, 9,670.13 and 3,977.17 is: 5,967.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,445.22 : 9,670.13 = 3,977.17 : x
  2. Step 2: Convert to fraction form
    6,445.22/9,670.13 = 3,977.17/x
  3. Step 3: Cross multiply
    6,445.22x = 9,670.13 × 3,977.17
  4. Step 4: Simplify right side
    6,445.22x = 38,459,736.70
  5. Step 5: Solve for x
    x = 38,459,736.70/6,445.22
  6. Step 6: Final answer
    x = 5,967.17

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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.