Home / 5,428.10-7,489.56-3,304.74

Finding the Fourth Proportional to 5,428.10, 7,489.56 and 3,304.74

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Solution

The fourth proportional to 5,428.10, 7,489.56 and 3,304.74 is: 4,559.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.10 : 7,489.56 = 3,304.74 : x
  2. Step 2: Convert to fraction form
    5,428.10/7,489.56 = 3,304.74/x
  3. Step 3: Cross multiply
    5,428.10x = 7,489.56 × 3,304.74
  4. Step 4: Simplify right side
    5,428.10x = 24,751,048.51
  5. Step 5: Solve for x
    x = 24,751,048.51/5,428.10
  6. Step 6: Final answer
    x = 4,559.80

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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.