Home / 3,263.79-4,502.90-2,128.95

Finding the Fourth Proportional to 3,263.79, 4,502.90 and 2,128.95

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Solution

The fourth proportional to 3,263.79, 4,502.90 and 2,128.95 is: 2,937.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,263.79 : 4,502.90 = 2,128.95 : x
  2. Step 2: Convert to fraction form
    3,263.79/4,502.90 = 2,128.95/x
  3. Step 3: Cross multiply
    3,263.79x = 4,502.90 × 2,128.95
  4. Step 4: Simplify right side
    3,263.79x = 9,586,438.31
  5. Step 5: Solve for x
    x = 9,586,438.31/3,263.79
  6. Step 6: Final answer
    x = 2,937.21

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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.