Home / 4,287.60-6,427.62-1,688.58

Finding the Fourth Proportional to 4,287.60, 6,427.62 and 1,688.58

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Solution

The fourth proportional to 4,287.60, 6,427.62 and 1,688.58 is: 2,531.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,287.60 : 6,427.62 = 1,688.58 : x
  2. Step 2: Convert to fraction form
    4,287.60/6,427.62 = 1,688.58/x
  3. Step 3: Cross multiply
    4,287.60x = 6,427.62 × 1,688.58
  4. Step 4: Simplify right side
    4,287.60x = 10,853,550.58
  5. Step 5: Solve for x
    x = 10,853,550.58/4,287.60
  6. Step 6: Final answer
    x = 2,531.38

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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.