Home / 2,091.36-2,886.06-1,207.44

Finding the Fourth Proportional to 2,091.36, 2,886.06 and 1,207.44

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Solution

The fourth proportional to 2,091.36, 2,886.06 and 1,207.44 is: 1,666.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,091.36 : 2,886.06 = 1,207.44 : x
  2. Step 2: Convert to fraction form
    2,091.36/2,886.06 = 1,207.44/x
  3. Step 3: Cross multiply
    2,091.36x = 2,886.06 × 1,207.44
  4. Step 4: Simplify right side
    2,091.36x = 3,484,744.29
  5. Step 5: Solve for x
    x = 3,484,744.29/2,091.36
  6. Step 6: Final answer
    x = 1,666.26

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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.