Home / 5,474.28-7,554.48-2,990.28

Finding the Fourth Proportional to 5,474.28, 7,554.48 and 2,990.28

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Solution

The fourth proportional to 5,474.28, 7,554.48 and 2,990.28 is: 4,126.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,474.28 : 7,554.48 = 2,990.28 : x
  2. Step 2: Convert to fraction form
    5,474.28/7,554.48 = 2,990.28/x
  3. Step 3: Cross multiply
    5,474.28x = 7,554.48 × 2,990.28
  4. Step 4: Simplify right side
    5,474.28x = 22,590,010.45
  5. Step 5: Solve for x
    x = 22,590,010.45/5,474.28
  6. Step 6: Final answer
    x = 4,126.57

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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.