Home / 2,151.95-2,968.97-1,207.58

Finding the Fourth Proportional to 2,151.95, 2,968.97 and 1,207.58

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Solution

The fourth proportional to 2,151.95, 2,968.97 and 1,207.58 is: 1,666.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,151.95 : 2,968.97 = 1,207.58 : x
  2. Step 2: Convert to fraction form
    2,151.95/2,968.97 = 1,207.58/x
  3. Step 3: Cross multiply
    2,151.95x = 2,968.97 × 1,207.58
  4. Step 4: Simplify right side
    2,151.95x = 3,585,247.91
  5. Step 5: Solve for x
    x = 3,585,247.91/2,151.95
  6. Step 6: Final answer
    x = 1,666.05

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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.