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Finding the Fourth Proportional to 3,460.12, 4,775 and 1,888.22

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Solution

The fourth proportional to 3,460.12, 4,775 and 1,888.22 is: 2,605.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,460.12 : 4,775 = 1,888.22 : x
  2. Step 2: Convert to fraction form
    3,460.12/4,775 = 1,888.22/x
  3. Step 3: Cross multiply
    3,460.12x = 4,775 × 1,888.22
  4. Step 4: Simplify right side
    3,460.12x = 9,016,250.50
  5. Step 5: Solve for x
    x = 9,016,250.50/3,460.12
  6. Step 6: Final answer
    x = 2,605.76

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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.