Home / 5,549.40-7,642.58-5,428.44

Finding the Fourth Proportional to 5,549.40, 7,642.58 and 5,428.44

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Solution

The fourth proportional to 5,549.40, 7,642.58 and 5,428.44 is: 7,476.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,549.40 : 7,642.58 = 5,428.44 : x
  2. Step 2: Convert to fraction form
    5,549.40/7,642.58 = 5,428.44/x
  3. Step 3: Cross multiply
    5,549.40x = 7,642.58 × 5,428.44
  4. Step 4: Simplify right side
    5,549.40x = 41,487,286.98
  5. Step 5: Solve for x
    x = 41,487,286.98/5,549.40
  6. Step 6: Final answer
    x = 7,476.00

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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.