Home / 5,475.17-7,555.74-2,991.17

Finding the Fourth Proportional to 5,475.17, 7,555.74 and 2,991.17

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Solution

The fourth proportional to 5,475.17, 7,555.74 and 2,991.17 is: 4,127.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,475.17 : 7,555.74 = 2,991.17 : x
  2. Step 2: Convert to fraction form
    5,475.17/7,555.74 = 2,991.17/x
  3. Step 3: Cross multiply
    5,475.17x = 7,555.74 × 2,991.17
  4. Step 4: Simplify right side
    5,475.17x = 22,600,487.86
  5. Step 5: Solve for x
    x = 22,600,487.86/5,475.17
  6. Step 6: Final answer
    x = 4,127.81

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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.