Home / 2,630.12-3,626.34-2,130.92

Finding the Fourth Proportional to 2,630.12, 3,626.34 and 2,130.92

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Solution

The fourth proportional to 2,630.12, 3,626.34 and 2,130.92 is: 2,938.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,630.12 : 3,626.34 = 2,130.92 : x
  2. Step 2: Convert to fraction form
    2,630.12/3,626.34 = 2,130.92/x
  3. Step 3: Cross multiply
    2,630.12x = 3,626.34 × 2,130.92
  4. Step 4: Simplify right side
    2,630.12x = 7,727,440.43
  5. Step 5: Solve for x
    x = 7,727,440.43/2,630.12
  6. Step 6: Final answer
    x = 2,938.06

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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.