Home / 2,215.90-3,323.80-572.41

Finding the Fourth Proportional to 2,215.90, 3,323.80 and 572.41

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Solution

The fourth proportional to 2,215.90, 3,323.80 and 572.41 is: 858.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,215.90 : 3,323.80 = 572.41 : x
  2. Step 2: Convert to fraction form
    2,215.90/3,323.80 = 572.41/x
  3. Step 3: Cross multiply
    2,215.90x = 3,323.80 × 572.41
  4. Step 4: Simplify right side
    2,215.90x = 1,902,576.36
  5. Step 5: Solve for x
    x = 1,902,576.36/2,215.90
  6. Step 6: Final answer
    x = 858.60

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1.5x scale

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.