Home / 2,670.12-3,685.05-1,551.06

Finding the Fourth Proportional to 2,670.12, 3,685.05 and 1,551.06

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Solution

The fourth proportional to 2,670.12, 3,685.05 and 1,551.06 is: 2,140.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,670.12 : 3,685.05 = 1,551.06 : x
  2. Step 2: Convert to fraction form
    2,670.12/3,685.05 = 1,551.06/x
  3. Step 3: Cross multiply
    2,670.12x = 3,685.05 × 1,551.06
  4. Step 4: Simplify right side
    2,670.12x = 5,715,733.65
  5. Step 5: Solve for x
    x = 5,715,733.65/2,670.12
  6. Step 6: Final answer
    x = 2,140.63

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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.