Home / 5,156.90-7,118.21-3,032.32

Finding the Fourth Proportional to 5,156.90, 7,118.21 and 3,032.32

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Solution

The fourth proportional to 5,156.90, 7,118.21 and 3,032.32 is: 4,185.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,156.90 : 7,118.21 = 3,032.32 : x
  2. Step 2: Convert to fraction form
    5,156.90/7,118.21 = 3,032.32/x
  3. Step 3: Cross multiply
    5,156.90x = 7,118.21 × 3,032.32
  4. Step 4: Simplify right side
    5,156.90x = 21,584,690.55
  5. Step 5: Solve for x
    x = 21,584,690.55/5,156.90
  6. Step 6: Final answer
    x = 4,185.59

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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.