Home / 3,215.57-4,822.74-1,570.46

Finding the Fourth Proportional to 3,215.57, 4,822.74 and 1,570.46

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Solution

The fourth proportional to 3,215.57, 4,822.74 and 1,570.46 is: 2,355.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.57 : 4,822.74 = 1,570.46 : x
  2. Step 2: Convert to fraction form
    3,215.57/4,822.74 = 1,570.46/x
  3. Step 3: Cross multiply
    3,215.57x = 4,822.74 × 1,570.46
  4. Step 4: Simplify right side
    3,215.57x = 7,573,896.15
  5. Step 5: Solve for x
    x = 7,573,896.15/3,215.57
  6. Step 6: Final answer
    x = 2,355.39

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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.