Home / 7,378.30-11,065.71-2,113.23

Finding the Fourth Proportional to 7,378.30, 11,065.71 and 2,113.23

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Solution

The fourth proportional to 7,378.30, 11,065.71 and 2,113.23 is: 3,169.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,378.30 : 11,065.71 = 2,113.23 : x
  2. Step 2: Convert to fraction form
    7,378.30/11,065.71 = 2,113.23/x
  3. Step 3: Cross multiply
    7,378.30x = 11,065.71 × 2,113.23
  4. Step 4: Simplify right side
    7,378.30x = 23,384,439.76
  5. Step 5: Solve for x
    x = 23,384,439.76/7,378.30
  6. Step 6: Final answer
    x = 3,169.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.