Home / 3,407.16-5,110.53-1,215.78

Finding the Fourth Proportional to 3,407.16, 5,110.53 and 1,215.78

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Solution

The fourth proportional to 3,407.16, 5,110.53 and 1,215.78 is: 1,823.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,407.16 : 5,110.53 = 1,215.78 : x
  2. Step 2: Convert to fraction form
    3,407.16/5,110.53 = 1,215.78/x
  3. Step 3: Cross multiply
    3,407.16x = 5,110.53 × 1,215.78
  4. Step 4: Simplify right side
    3,407.16x = 6,213,280.16
  5. Step 5: Solve for x
    x = 6,213,280.16/3,407.16
  6. Step 6: Final answer
    x = 1,823.60

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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.