Home / 2,920.24-4,030.83-1,872.28

Finding the Fourth Proportional to 2,920.24, 4,030.83 and 1,872.28

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Solution

The fourth proportional to 2,920.24, 4,030.83 and 1,872.28 is: 2,584.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.24 : 4,030.83 = 1,872.28 : x
  2. Step 2: Convert to fraction form
    2,920.24/4,030.83 = 1,872.28/x
  3. Step 3: Cross multiply
    2,920.24x = 4,030.83 × 1,872.28
  4. Step 4: Simplify right side
    2,920.24x = 7,546,842.39
  5. Step 5: Solve for x
    x = 7,546,842.39/2,920.24
  6. Step 6: Final answer
    x = 2,584.32

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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.