Home / 5,117.35-7,670.90-2,156.51

Finding the Fourth Proportional to 5,117.35, 7,670.90 and 2,156.51

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Solution

The fourth proportional to 5,117.35, 7,670.90 and 2,156.51 is: 3,232.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,117.35 : 7,670.90 = 2,156.51 : x
  2. Step 2: Convert to fraction form
    5,117.35/7,670.90 = 2,156.51/x
  3. Step 3: Cross multiply
    5,117.35x = 7,670.90 × 2,156.51
  4. Step 4: Simplify right side
    5,117.35x = 16,542,323.42
  5. Step 5: Solve for x
    x = 16,542,323.42/5,117.35
  6. Step 6: Final answer
    x = 3,232.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.