Home / 2,005.74-3,008.61-1,386.06

Finding the Fourth Proportional to 2,005.74, 3,008.61 and 1,386.06

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Solution

The fourth proportional to 2,005.74, 3,008.61 and 1,386.06 is: 2,079.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,005.74 : 3,008.61 = 1,386.06 : x
  2. Step 2: Convert to fraction form
    2,005.74/3,008.61 = 1,386.06/x
  3. Step 3: Cross multiply
    2,005.74x = 3,008.61 × 1,386.06
  4. Step 4: Simplify right side
    2,005.74x = 4,170,113.98
  5. Step 5: Solve for x
    x = 4,170,113.98/2,005.74
  6. Step 6: Final answer
    x = 2,079.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.