Home / 2,445.39-3,374.87-1,397.25

Finding the Fourth Proportional to 2,445.39, 3,374.87 and 1,397.25

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Solution

The fourth proportional to 2,445.39, 3,374.87 and 1,397.25 is: 1,928.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,445.39 : 3,374.87 = 1,397.25 : x
  2. Step 2: Convert to fraction form
    2,445.39/3,374.87 = 1,397.25/x
  3. Step 3: Cross multiply
    2,445.39x = 3,374.87 × 1,397.25
  4. Step 4: Simplify right side
    2,445.39x = 4,715,530.12
  5. Step 5: Solve for x
    x = 4,715,530.12/2,445.39
  6. Step 6: Final answer
    x = 1,928.33

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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.