Home / 2,811.36-4,204.60-2,553

Finding the Fourth Proportional to 2,811.36, 4,204.60 and 2,553

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Solution

The fourth proportional to 2,811.36, 4,204.60 and 2,553 is: 3,818.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811.36 : 4,204.60 = 2,553 : x
  2. Step 2: Convert to fraction form
    2,811.36/4,204.60 = 2,553/x
  3. Step 3: Cross multiply
    2,811.36x = 4,204.60 × 2,553
  4. Step 4: Simplify right side
    2,811.36x = 10,734,343.80
  5. Step 5: Solve for x
    x = 10,734,343.80/2,811.36
  6. Step 6: Final answer
    x = 3,818.20

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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.