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Finding the Fourth Proportional to 3,457.77, 4,770.20 and 2,338.30

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Solution

The fourth proportional to 3,457.77, 4,770.20 and 2,338.30 is: 3,225.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,457.77 : 4,770.20 = 2,338.30 : x
  2. Step 2: Convert to fraction form
    3,457.77/4,770.20 = 2,338.30/x
  3. Step 3: Cross multiply
    3,457.77x = 4,770.20 × 2,338.30
  4. Step 4: Simplify right side
    3,457.77x = 11,154,158.66
  5. Step 5: Solve for x
    x = 11,154,158.66/3,457.77
  6. Step 6: Final answer
    x = 3,225.82

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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.