Home / 7,378.49-10,182.31-4,021.38

Finding the Fourth Proportional to 7,378.49, 10,182.31 and 4,021.38

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Solution

The fourth proportional to 7,378.49, 10,182.31 and 4,021.38 is: 5,549.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,378.49 : 10,182.31 = 4,021.38 : x
  2. Step 2: Convert to fraction form
    7,378.49/10,182.31 = 4,021.38/x
  3. Step 3: Cross multiply
    7,378.49x = 10,182.31 × 4,021.38
  4. Step 4: Simplify right side
    7,378.49x = 40,946,927.73
  5. Step 5: Solve for x
    x = 40,946,927.73/7,378.49
  6. Step 6: Final answer
    x = 5,549.50

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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.