Home / 5,428.96-7,485.01-4,307.96

Finding the Fourth Proportional to 5,428.96, 7,485.01 and 4,307.96

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Solution

The fourth proportional to 5,428.96, 7,485.01 and 4,307.96 is: 5,939.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.96 : 7,485.01 = 4,307.96 : x
  2. Step 2: Convert to fraction form
    5,428.96/7,485.01 = 4,307.96/x
  3. Step 3: Cross multiply
    5,428.96x = 7,485.01 × 4,307.96
  4. Step 4: Simplify right side
    5,428.96x = 32,245,131.62
  5. Step 5: Solve for x
    x = 32,245,131.62/5,428.96
  6. Step 6: Final answer
    x = 5,939.47

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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.