Home / 1,744.45-2,405.38-1,345.21

Finding the Fourth Proportional to 1,744.45, 2,405.38 and 1,345.21

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Solution

The fourth proportional to 1,744.45, 2,405.38 and 1,345.21 is: 1,854.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,744.45 : 2,405.38 = 1,345.21 : x
  2. Step 2: Convert to fraction form
    1,744.45/2,405.38 = 1,345.21/x
  3. Step 3: Cross multiply
    1,744.45x = 2,405.38 × 1,345.21
  4. Step 4: Simplify right side
    1,744.45x = 3,235,741.23
  5. Step 5: Solve for x
    x = 3,235,741.23/1,744.45
  6. Step 6: Final answer
    x = 1,854.88

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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.