Home / 4,285.53-6,428.88-1,688.25

Finding the Fourth Proportional to 4,285.53, 6,428.88 and 1,688.25

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Solution

The fourth proportional to 4,285.53, 6,428.88 and 1,688.25 is: 2,532.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,285.53 : 6,428.88 = 1,688.25 : x
  2. Step 2: Convert to fraction form
    4,285.53/6,428.88 = 1,688.25/x
  3. Step 3: Cross multiply
    4,285.53x = 6,428.88 × 1,688.25
  4. Step 4: Simplify right side
    4,285.53x = 10,853,556.66
  5. Step 5: Solve for x
    x = 10,853,556.66/4,285.53
  6. Step 6: Final answer
    x = 2,532.61

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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.