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Finding the Fourth Proportional to 2,670.66, 3,685.53 and 1,551.69

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Solution

The fourth proportional to 2,670.66, 3,685.53 and 1,551.69 is: 2,141.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,670.66 : 3,685.53 = 1,551.69 : x
  2. Step 2: Convert to fraction form
    2,670.66/3,685.53 = 1,551.69/x
  3. Step 3: Cross multiply
    2,670.66x = 3,685.53 × 1,551.69
  4. Step 4: Simplify right side
    2,670.66x = 5,718,800.05
  5. Step 5: Solve for x
    x = 5,718,800.05/2,670.66
  6. Step 6: Final answer
    x = 2,141.34

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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.