Home / 5,415.48-7,472.81-3,057.17

Finding the Fourth Proportional to 5,415.48, 7,472.81 and 3,057.17

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Solution

The fourth proportional to 5,415.48, 7,472.81 and 3,057.17 is: 4,218.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.48 : 7,472.81 = 3,057.17 : x
  2. Step 2: Convert to fraction form
    5,415.48/7,472.81 = 3,057.17/x
  3. Step 3: Cross multiply
    5,415.48x = 7,472.81 × 3,057.17
  4. Step 4: Simplify right side
    5,415.48x = 22,845,620.83
  5. Step 5: Solve for x
    x = 22,845,620.83/5,415.48
  6. Step 6: Final answer
    x = 4,218.58

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1.5x scale

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.