Home / 2,920.29-4,030.43-1,661.04

Finding the Fourth Proportional to 2,920.29, 4,030.43 and 1,661.04

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Solution

The fourth proportional to 2,920.29, 4,030.43 and 1,661.04 is: 2,292.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.29 : 4,030.43 = 1,661.04 : x
  2. Step 2: Convert to fraction form
    2,920.29/4,030.43 = 1,661.04/x
  3. Step 3: Cross multiply
    2,920.29x = 4,030.43 × 1,661.04
  4. Step 4: Simplify right side
    2,920.29x = 6,694,697.14
  5. Step 5: Solve for x
    x = 6,694,697.14/2,920.29
  6. Step 6: Final answer
    x = 2,292.48

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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.