Home / 2,418.48-3,334.86-1,913.46

Finding the Fourth Proportional to 2,418.48, 3,334.86 and 1,913.46

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Solution

The fourth proportional to 2,418.48, 3,334.86 and 1,913.46 is: 2,638.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,418.48 : 3,334.86 = 1,913.46 : x
  2. Step 2: Convert to fraction form
    2,418.48/3,334.86 = 1,913.46/x
  3. Step 3: Cross multiply
    2,418.48x = 3,334.86 × 1,913.46
  4. Step 4: Simplify right side
    2,418.48x = 6,381,121.22
  5. Step 5: Solve for x
    x = 6,381,121.22/2,418.48
  6. Step 6: Final answer
    x = 2,638.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.