Home / 2,092.19-2,886.89-1,207.80

Finding the Fourth Proportional to 2,092.19, 2,886.89 and 1,207.80

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Solution

The fourth proportional to 2,092.19, 2,886.89 and 1,207.80 is: 1,666.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,092.19 : 2,886.89 = 1,207.80 : x
  2. Step 2: Convert to fraction form
    2,092.19/2,886.89 = 1,207.80/x
  3. Step 3: Cross multiply
    2,092.19x = 2,886.89 × 1,207.80
  4. Step 4: Simplify right side
    2,092.19x = 3,486,779.70
  5. Step 5: Solve for x
    x = 3,486,779.70/2,092.19
  6. Step 6: Final answer
    x = 1,666.57

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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.