Home / 2,091.02-2,886.33-1,207.18

Finding the Fourth Proportional to 2,091.02, 2,886.33 and 1,207.18

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Solution

The fourth proportional to 2,091.02, 2,886.33 and 1,207.18 is: 1,666.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,091.02 : 2,886.33 = 1,207.18 : x
  2. Step 2: Convert to fraction form
    2,091.02/2,886.33 = 1,207.18/x
  3. Step 3: Cross multiply
    2,091.02x = 2,886.33 × 1,207.18
  4. Step 4: Simplify right side
    2,091.02x = 3,484,319.85
  5. Step 5: Solve for x
    x = 3,484,319.85/2,091.02
  6. Step 6: Final answer
    x = 1,666.33

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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.