Home / 5,285.03-7,928.75-2,818.55

Finding the Fourth Proportional to 5,285.03, 7,928.75 and 2,818.55

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Solution

The fourth proportional to 5,285.03, 7,928.75 and 2,818.55 is: 4,228.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,285.03 : 7,928.75 = 2,818.55 : x
  2. Step 2: Convert to fraction form
    5,285.03/7,928.75 = 2,818.55/x
  3. Step 3: Cross multiply
    5,285.03x = 7,928.75 × 2,818.55
  4. Step 4: Simplify right side
    5,285.03x = 22,347,578.31
  5. Step 5: Solve for x
    x = 22,347,578.31/5,285.03
  6. Step 6: Final answer
    x = 4,228.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.