Home / 2,197.16-3,031.66-1,489.57

Finding the Fourth Proportional to 2,197.16, 3,031.66 and 1,489.57

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Solution

The fourth proportional to 2,197.16, 3,031.66 and 1,489.57 is: 2,055.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,197.16 : 3,031.66 = 1,489.57 : x
  2. Step 2: Convert to fraction form
    2,197.16/3,031.66 = 1,489.57/x
  3. Step 3: Cross multiply
    2,197.16x = 3,031.66 × 1,489.57
  4. Step 4: Simplify right side
    2,197.16x = 4,515,864.07
  5. Step 5: Solve for x
    x = 4,515,864.07/2,197.16
  6. Step 6: Final answer
    x = 2,055.32

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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.