Home / 2,117.07-2,921.28-1,266.33

Finding the Fourth Proportional to 2,117.07, 2,921.28 and 1,266.33

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Solution

The fourth proportional to 2,117.07, 2,921.28 and 1,266.33 is: 1,747.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117.07 : 2,921.28 = 1,266.33 : x
  2. Step 2: Convert to fraction form
    2,117.07/2,921.28 = 1,266.33/x
  3. Step 3: Cross multiply
    2,117.07x = 2,921.28 × 1,266.33
  4. Step 4: Simplify right side
    2,117.07x = 3,699,304.50
  5. Step 5: Solve for x
    x = 3,699,304.50/2,117.07
  6. Step 6: Final answer
    x = 1,747.37

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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.