Home / 2,215.68-3,316.31-1,630.53

Finding the Fourth Proportional to 2,215.68, 3,316.31 and 1,630.53

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Solution

The fourth proportional to 2,215.68, 3,316.31 and 1,630.53 is: 2,440.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,215.68 : 3,316.31 = 1,630.53 : x
  2. Step 2: Convert to fraction form
    2,215.68/3,316.31 = 1,630.53/x
  3. Step 3: Cross multiply
    2,215.68x = 3,316.31 × 1,630.53
  4. Step 4: Simplify right side
    2,215.68x = 5,407,334.79
  5. Step 5: Solve for x
    x = 5,407,334.79/2,215.68
  6. Step 6: Final answer
    x = 2,440.49

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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.