Home / 5,111.42-7,670.08-2,149.63

Finding the Fourth Proportional to 5,111.42, 7,670.08 and 2,149.63

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Solution

The fourth proportional to 5,111.42, 7,670.08 and 2,149.63 is: 3,225.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,111.42 : 7,670.08 = 2,149.63 : x
  2. Step 2: Convert to fraction form
    5,111.42/7,670.08 = 2,149.63/x
  3. Step 3: Cross multiply
    5,111.42x = 7,670.08 × 2,149.63
  4. Step 4: Simplify right side
    5,111.42x = 16,487,834.07
  5. Step 5: Solve for x
    x = 16,487,834.07/5,111.42
  6. Step 6: Final answer
    x = 3,225.69

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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.