Home / 2,506.27-3,458.56-1,387.21

Finding the Fourth Proportional to 2,506.27, 3,458.56 and 1,387.21

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Solution

The fourth proportional to 2,506.27, 3,458.56 and 1,387.21 is: 1,914.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,506.27 : 3,458.56 = 1,387.21 : x
  2. Step 2: Convert to fraction form
    2,506.27/3,458.56 = 1,387.21/x
  3. Step 3: Cross multiply
    2,506.27x = 3,458.56 × 1,387.21
  4. Step 4: Simplify right side
    2,506.27x = 4,797,728.26
  5. Step 5: Solve for x
    x = 4,797,728.26/2,506.27
  6. Step 6: Final answer
    x = 1,914.29

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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.