Home / 2,378.45-3,275.04-2,109.03

Finding the Fourth Proportional to 2,378.45, 3,275.04 and 2,109.03

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Solution

The fourth proportional to 2,378.45, 3,275.04 and 2,109.03 is: 2,904.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,378.45 : 3,275.04 = 2,109.03 : x
  2. Step 2: Convert to fraction form
    2,378.45/3,275.04 = 2,109.03/x
  3. Step 3: Cross multiply
    2,378.45x = 3,275.04 × 2,109.03
  4. Step 4: Simplify right side
    2,378.45x = 6,907,157.61
  5. Step 5: Solve for x
    x = 6,907,157.61/2,378.45
  6. Step 6: Final answer
    x = 2,904.06

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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.