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Finding the Fourth Proportional to 1,703.81, 2,352.39 and 1,145.56

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Solution

The fourth proportional to 1,703.81, 2,352.39 and 1,145.56 is: 1,581.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,703.81 : 2,352.39 = 1,145.56 : x
  2. Step 2: Convert to fraction form
    1,703.81/2,352.39 = 1,145.56/x
  3. Step 3: Cross multiply
    1,703.81x = 2,352.39 × 1,145.56
  4. Step 4: Simplify right side
    1,703.81x = 2,694,794.64
  5. Step 5: Solve for x
    x = 2,694,794.64/1,703.81
  6. Step 6: Final answer
    x = 1,581.63

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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.