Home / 7,378.08-10,179.36-4,394.40

Finding the Fourth Proportional to 7,378.08, 10,179.36 and 4,394.40

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Solution

The fourth proportional to 7,378.08, 10,179.36 and 4,394.40 is: 6,062.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,378.08 : 10,179.36 = 4,394.40 : x
  2. Step 2: Convert to fraction form
    7,378.08/10,179.36 = 4,394.40/x
  3. Step 3: Cross multiply
    7,378.08x = 10,179.36 × 4,394.40
  4. Step 4: Simplify right side
    7,378.08x = 44,732,179.58
  5. Step 5: Solve for x
    x = 44,732,179.58/7,378.08
  6. Step 6: Final answer
    x = 6,062.85

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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.