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Finding the Fourth Proportional to 3,457.88, 4,770.23 and 2,339.21

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Solution

The fourth proportional to 3,457.88, 4,770.23 and 2,339.21 is: 3,226.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,457.88 : 4,770.23 = 2,339.21 : x
  2. Step 2: Convert to fraction form
    3,457.88/4,770.23 = 2,339.21/x
  3. Step 3: Cross multiply
    3,457.88x = 4,770.23 × 2,339.21
  4. Step 4: Simplify right side
    3,457.88x = 11,158,534.17
  5. Step 5: Solve for x
    x = 11,158,534.17/3,457.88
  6. Step 6: Final answer
    x = 3,226.99

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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.