Home / 2,091.17-2,886.08-1,206.98

Finding the Fourth Proportional to 2,091.17, 2,886.08 and 1,206.98

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Solution

The fourth proportional to 2,091.17, 2,886.08 and 1,206.98 is: 1,665.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,091.17 : 2,886.08 = 1,206.98 : x
  2. Step 2: Convert to fraction form
    2,091.17/2,886.08 = 1,206.98/x
  3. Step 3: Cross multiply
    2,091.17x = 2,886.08 × 1,206.98
  4. Step 4: Simplify right side
    2,091.17x = 3,483,423.08
  5. Step 5: Solve for x
    x = 3,483,423.08/2,091.17
  6. Step 6: Final answer
    x = 1,665.78

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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.