Home / 2,275.34-3,415.75-1,542.70

Finding the Fourth Proportional to 2,275.34, 3,415.75 and 1,542.70

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Solution

The fourth proportional to 2,275.34, 3,415.75 and 1,542.70 is: 2,315.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,275.34 : 3,415.75 = 1,542.70 : x
  2. Step 2: Convert to fraction form
    2,275.34/3,415.75 = 1,542.70/x
  3. Step 3: Cross multiply
    2,275.34x = 3,415.75 × 1,542.70
  4. Step 4: Simplify right side
    2,275.34x = 5,269,477.53
  5. Step 5: Solve for x
    x = 5,269,477.53/2,275.34
  6. Step 6: Final answer
    x = 2,315.91

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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.