Home / 2,690.98-3,713.37-1,512.02

Finding the Fourth Proportional to 2,690.98, 3,713.37 and 1,512.02

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Solution

The fourth proportional to 2,690.98, 3,713.37 and 1,512.02 is: 2,086.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.98 : 3,713.37 = 1,512.02 : x
  2. Step 2: Convert to fraction form
    2,690.98/3,713.37 = 1,512.02/x
  3. Step 3: Cross multiply
    2,690.98x = 3,713.37 × 1,512.02
  4. Step 4: Simplify right side
    2,690.98x = 5,614,689.71
  5. Step 5: Solve for x
    x = 5,614,689.71/2,690.98
  6. Step 6: Final answer
    x = 2,086.49

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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.