Home / 5,436.48-8,152.44-1,687.80

Finding the Fourth Proportional to 5,436.48, 8,152.44 and 1,687.80

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Solution

The fourth proportional to 5,436.48, 8,152.44 and 1,687.80 is: 2,530.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,436.48 : 8,152.44 = 1,687.80 : x
  2. Step 2: Convert to fraction form
    5,436.48/8,152.44 = 1,687.80/x
  3. Step 3: Cross multiply
    5,436.48x = 8,152.44 × 1,687.80
  4. Step 4: Simplify right side
    5,436.48x = 13,759,688.23
  5. Step 5: Solve for x
    x = 13,759,688.23/5,436.48
  6. Step 6: Final answer
    x = 2,530.99

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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.