Home / 5,390.70-7,439.36-3,032.79

Finding the Fourth Proportional to 5,390.70, 7,439.36 and 3,032.79

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Solution

The fourth proportional to 5,390.70, 7,439.36 and 3,032.79 is: 4,185.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390.70 : 7,439.36 = 3,032.79 : x
  2. Step 2: Convert to fraction form
    5,390.70/7,439.36 = 3,032.79/x
  3. Step 3: Cross multiply
    5,390.70x = 7,439.36 × 3,032.79
  4. Step 4: Simplify right side
    5,390.70x = 22,562,001.45
  5. Step 5: Solve for x
    x = 22,562,001.45/5,390.70
  6. Step 6: Final answer
    x = 4,185.36

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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.