Home / 2,813.34-4,220.54-1,408.51

Finding the Fourth Proportional to 2,813.34, 4,220.54 and 1,408.51

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Solution

The fourth proportional to 2,813.34, 4,220.54 and 1,408.51 is: 2,113.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,813.34 : 4,220.54 = 1,408.51 : x
  2. Step 2: Convert to fraction form
    2,813.34/4,220.54 = 1,408.51/x
  3. Step 3: Cross multiply
    2,813.34x = 4,220.54 × 1,408.51
  4. Step 4: Simplify right side
    2,813.34x = 5,944,672.80
  5. Step 5: Solve for x
    x = 5,944,672.80/2,813.34
  6. Step 6: Final answer
    x = 2,113.03

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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.