Home / 2,117.52-2,921.67-1,186.02

Finding the Fourth Proportional to 2,117.52, 2,921.67 and 1,186.02

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Solution

The fourth proportional to 2,117.52, 2,921.67 and 1,186.02 is: 1,636.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117.52 : 2,921.67 = 1,186.02 : x
  2. Step 2: Convert to fraction form
    2,117.52/2,921.67 = 1,186.02/x
  3. Step 3: Cross multiply
    2,117.52x = 2,921.67 × 1,186.02
  4. Step 4: Simplify right side
    2,117.52x = 3,465,159.05
  5. Step 5: Solve for x
    x = 3,465,159.05/2,117.52
  6. Step 6: Final answer
    x = 1,636.42

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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.