Home / 3,471.31-4,790.40-1,899.40

Finding the Fourth Proportional to 3,471.31, 4,790.40 and 1,899.40

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Solution

The fourth proportional to 3,471.31, 4,790.40 and 1,899.40 is: 2,621.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,471.31 : 4,790.40 = 1,899.40 : x
  2. Step 2: Convert to fraction form
    3,471.31/4,790.40 = 1,899.40/x
  3. Step 3: Cross multiply
    3,471.31x = 4,790.40 × 1,899.40
  4. Step 4: Simplify right side
    3,471.31x = 9,098,885.76
  5. Step 5: Solve for x
    x = 9,098,885.76/3,471.31
  6. Step 6: Final answer
    x = 2,621.17

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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.