Home / 2,089.63-2,884.31-1,206.06

Finding the Fourth Proportional to 2,089.63, 2,884.31 and 1,206.06

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Solution

The fourth proportional to 2,089.63, 2,884.31 and 1,206.06 is: 1,664.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,089.63 : 2,884.31 = 1,206.06 : x
  2. Step 2: Convert to fraction form
    2,089.63/2,884.31 = 1,206.06/x
  3. Step 3: Cross multiply
    2,089.63x = 2,884.31 × 1,206.06
  4. Step 4: Simplify right side
    2,089.63x = 3,478,650.92
  5. Step 5: Solve for x
    x = 3,478,650.92/2,089.63
  6. Step 6: Final answer
    x = 1,664.72

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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.