Home / 5,145.42-7,130.55-5,046.96

Finding the Fourth Proportional to 5,145.42, 7,130.55 and 5,046.96

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Solution

The fourth proportional to 5,145.42, 7,130.55 and 5,046.96 is: 6,994.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,145.42 : 7,130.55 = 5,046.96 : x
  2. Step 2: Convert to fraction form
    5,145.42/7,130.55 = 5,046.96/x
  3. Step 3: Cross multiply
    5,145.42x = 7,130.55 × 5,046.96
  4. Step 4: Simplify right side
    5,145.42x = 35,987,600.63
  5. Step 5: Solve for x
    x = 35,987,600.63/5,145.42
  6. Step 6: Final answer
    x = 6,994.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.