Home / 3,472.31-5,210.60-1,392.10

Finding the Fourth Proportional to 3,472.31, 5,210.60 and 1,392.10

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Solution

The fourth proportional to 3,472.31, 5,210.60 and 1,392.10 is: 2,089.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,472.31 : 5,210.60 = 1,392.10 : x
  2. Step 2: Convert to fraction form
    3,472.31/5,210.60 = 1,392.10/x
  3. Step 3: Cross multiply
    3,472.31x = 5,210.60 × 1,392.10
  4. Step 4: Simplify right side
    3,472.31x = 7,253,656.27
  5. Step 5: Solve for x
    x = 7,253,656.27/3,472.31
  6. Step 6: Final answer
    x = 2,089.00

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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.