Home / 5,257.21-7,254.91-2,899.35

Finding the Fourth Proportional to 5,257.21, 7,254.91 and 2,899.35

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Solution

The fourth proportional to 5,257.21, 7,254.91 and 2,899.35 is: 4,001.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,257.21 : 7,254.91 = 2,899.35 : x
  2. Step 2: Convert to fraction form
    5,257.21/7,254.91 = 2,899.35/x
  3. Step 3: Cross multiply
    5,257.21x = 7,254.91 × 2,899.35
  4. Step 4: Simplify right side
    5,257.21x = 21,034,523.31
  5. Step 5: Solve for x
    x = 21,034,523.31/5,257.21
  6. Step 6: Final answer
    x = 4,001.08

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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.