Home / 5,362.40-7,400.53-3,123.46

Finding the Fourth Proportional to 5,362.40, 7,400.53 and 3,123.46

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Solution

The fourth proportional to 5,362.40, 7,400.53 and 3,123.46 is: 4,310.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,362.40 : 7,400.53 = 3,123.46 : x
  2. Step 2: Convert to fraction form
    5,362.40/7,400.53 = 3,123.46/x
  3. Step 3: Cross multiply
    5,362.40x = 7,400.53 × 3,123.46
  4. Step 4: Simplify right side
    5,362.40x = 23,115,272.59
  5. Step 5: Solve for x
    x = 23,115,272.59/5,362.40
  6. Step 6: Final answer
    x = 4,310.62

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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.