Home / 3,601.40-4,970.13-2,109.43

Finding the Fourth Proportional to 3,601.40, 4,970.13 and 2,109.43

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Solution

The fourth proportional to 3,601.40, 4,970.13 and 2,109.43 is: 2,911.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,601.40 : 4,970.13 = 2,109.43 : x
  2. Step 2: Convert to fraction form
    3,601.40/4,970.13 = 2,109.43/x
  3. Step 3: Cross multiply
    3,601.40x = 4,970.13 × 2,109.43
  4. Step 4: Simplify right side
    3,601.40x = 10,484,130.78
  5. Step 5: Solve for x
    x = 10,484,130.78/3,601.40
  6. Step 6: Final answer
    x = 2,911.13

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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.