Home / 2,020.91-2,785.61-1,509.06

Finding the Fourth Proportional to 2,020.91, 2,785.61 and 1,509.06

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Solution

The fourth proportional to 2,020.91, 2,785.61 and 1,509.06 is: 2,080.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,020.91 : 2,785.61 = 1,509.06 : x
  2. Step 2: Convert to fraction form
    2,020.91/2,785.61 = 1,509.06/x
  3. Step 3: Cross multiply
    2,020.91x = 2,785.61 × 1,509.06
  4. Step 4: Simplify right side
    2,020.91x = 4,203,645.08
  5. Step 5: Solve for x
    x = 4,203,645.08/2,020.91
  6. Step 6: Final answer
    x = 2,080.08

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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.