Home / 2,065.90-2,851.38-1,616.88

Finding the Fourth Proportional to 2,065.90, 2,851.38 and 1,616.88

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Solution

The fourth proportional to 2,065.90, 2,851.38 and 1,616.88 is: 2,231.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,065.90 : 2,851.38 = 1,616.88 : x
  2. Step 2: Convert to fraction form
    2,065.90/2,851.38 = 1,616.88/x
  3. Step 3: Cross multiply
    2,065.90x = 2,851.38 × 1,616.88
  4. Step 4: Simplify right side
    2,065.90x = 4,610,332.49
  5. Step 5: Solve for x
    x = 4,610,332.49/2,065.90
  6. Step 6: Final answer
    x = 2,231.64

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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.