Home / 3,053.40-4,213.79-2,145.04

Finding the Fourth Proportional to 3,053.40, 4,213.79 and 2,145.04

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Solution

The fourth proportional to 3,053.40, 4,213.79 and 2,145.04 is: 2,960.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,053.40 : 4,213.79 = 2,145.04 : x
  2. Step 2: Convert to fraction form
    3,053.40/4,213.79 = 2,145.04/x
  3. Step 3: Cross multiply
    3,053.40x = 4,213.79 × 2,145.04
  4. Step 4: Simplify right side
    3,053.40x = 9,038,734.89
  5. Step 5: Solve for x
    x = 9,038,734.89/3,053.40
  6. Step 6: Final answer
    x = 2,960.22

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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.