Home / 1,753.53-2,623.79-1,405.80

Finding the Fourth Proportional to 1,753.53, 2,623.79 and 1,405.80

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Solution

The fourth proportional to 1,753.53, 2,623.79 and 1,405.80 is: 2,103.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,753.53 : 2,623.79 = 1,405.80 : x
  2. Step 2: Convert to fraction form
    1,753.53/2,623.79 = 1,405.80/x
  3. Step 3: Cross multiply
    1,753.53x = 2,623.79 × 1,405.80
  4. Step 4: Simplify right side
    1,753.53x = 3,688,527.50
  5. Step 5: Solve for x
    x = 3,688,527.50/1,753.53
  6. Step 6: Final answer
    x = 2,103.49

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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.