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Finding the Fourth Proportional to 7,671.42, 11,509.25 and 2,741.58

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Solution

The fourth proportional to 7,671.42, 11,509.25 and 2,741.58 is: 4,113.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,671.42 : 11,509.25 = 2,741.58 : x
  2. Step 2: Convert to fraction form
    7,671.42/11,509.25 = 2,741.58/x
  3. Step 3: Cross multiply
    7,671.42x = 11,509.25 × 2,741.58
  4. Step 4: Simplify right side
    7,671.42x = 31,553,515.91
  5. Step 5: Solve for x
    x = 31,553,515.91/7,671.42
  6. Step 6: Final answer
    x = 4,113.13

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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.