Home / 2,186.84-3,017.94-1,242.74

Finding the Fourth Proportional to 2,186.84, 3,017.94 and 1,242.74

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Solution

The fourth proportional to 2,186.84, 3,017.94 and 1,242.74 is: 1,715.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186.84 : 3,017.94 = 1,242.74 : x
  2. Step 2: Convert to fraction form
    2,186.84/3,017.94 = 1,242.74/x
  3. Step 3: Cross multiply
    2,186.84x = 3,017.94 × 1,242.74
  4. Step 4: Simplify right side
    2,186.84x = 3,750,514.76
  5. Step 5: Solve for x
    x = 3,750,514.76/2,186.84
  6. Step 6: Final answer
    x = 1,715.04

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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.