Home / 7,378.64-10,182.38-4,021.48

Finding the Fourth Proportional to 7,378.64, 10,182.38 and 4,021.48

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Solution

The fourth proportional to 7,378.64, 10,182.38 and 4,021.48 is: 5,549.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,378.64 : 10,182.38 = 4,021.48 : x
  2. Step 2: Convert to fraction form
    7,378.64/10,182.38 = 4,021.48/x
  3. Step 3: Cross multiply
    7,378.64x = 10,182.38 × 4,021.48
  4. Step 4: Simplify right side
    7,378.64x = 40,948,166.50
  5. Step 5: Solve for x
    x = 40,948,166.50/7,378.64
  6. Step 6: Final answer
    x = 5,549.56

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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.