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Finding the Fourth Proportional to 5,285.94, 7,294.73 and 2,928.26

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Solution

The fourth proportional to 5,285.94, 7,294.73 and 2,928.26 is: 4,041.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,285.94 : 7,294.73 = 2,928.26 : x
  2. Step 2: Convert to fraction form
    5,285.94/7,294.73 = 2,928.26/x
  3. Step 3: Cross multiply
    5,285.94x = 7,294.73 × 2,928.26
  4. Step 4: Simplify right side
    5,285.94x = 21,360,814.95
  5. Step 5: Solve for x
    x = 21,360,814.95/5,285.94
  6. Step 6: Final answer
    x = 4,041.06

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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.