Home / 2,914.20-4,020.39-2,030.51

Finding the Fourth Proportional to 2,914.20, 4,020.39 and 2,030.51

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Solution

The fourth proportional to 2,914.20, 4,020.39 and 2,030.51 is: 2,801.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,914.20 : 4,020.39 = 2,030.51 : x
  2. Step 2: Convert to fraction form
    2,914.20/4,020.39 = 2,030.51/x
  3. Step 3: Cross multiply
    2,914.20x = 4,020.39 × 2,030.51
  4. Step 4: Simplify right side
    2,914.20x = 8,163,439.36
  5. Step 5: Solve for x
    x = 8,163,439.36/2,914.20
  6. Step 6: Final answer
    x = 2,801.27

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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.