Home / 2,769.48-4,153.20-1,125.60

Finding the Fourth Proportional to 2,769.48, 4,153.20 and 1,125.60

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Solution

The fourth proportional to 2,769.48, 4,153.20 and 1,125.60 is: 1,687.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,769.48 : 4,153.20 = 1,125.60 : x
  2. Step 2: Convert to fraction form
    2,769.48/4,153.20 = 1,125.60/x
  3. Step 3: Cross multiply
    2,769.48x = 4,153.20 × 1,125.60
  4. Step 4: Simplify right side
    2,769.48x = 4,674,841.92
  5. Step 5: Solve for x
    x = 4,674,841.92/2,769.48
  6. Step 6: Final answer
    x = 1,687.99

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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.