Home / 2,489.35-3,435.23-1,370.29

Finding the Fourth Proportional to 2,489.35, 3,435.23 and 1,370.29

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Solution

The fourth proportional to 2,489.35, 3,435.23 and 1,370.29 is: 1,890.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.35 : 3,435.23 = 1,370.29 : x
  2. Step 2: Convert to fraction form
    2,489.35/3,435.23 = 1,370.29/x
  3. Step 3: Cross multiply
    2,489.35x = 3,435.23 × 1,370.29
  4. Step 4: Simplify right side
    2,489.35x = 4,707,261.32
  5. Step 5: Solve for x
    x = 4,707,261.32/2,489.35
  6. Step 6: Final answer
    x = 1,890.96

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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.