Home / 2,455.36-3,387.40-1,570.96

Finding the Fourth Proportional to 2,455.36, 3,387.40 and 1,570.96

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Solution

The fourth proportional to 2,455.36, 3,387.40 and 1,570.96 is: 2,167.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,455.36 : 3,387.40 = 1,570.96 : x
  2. Step 2: Convert to fraction form
    2,455.36/3,387.40 = 1,570.96/x
  3. Step 3: Cross multiply
    2,455.36x = 3,387.40 × 1,570.96
  4. Step 4: Simplify right side
    2,455.36x = 5,321,469.90
  5. Step 5: Solve for x
    x = 5,321,469.90/2,455.36
  6. Step 6: Final answer
    x = 2,167.29

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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.