Home / 2,617.15-3,611.65-1,422.13

Finding the Fourth Proportional to 2,617.15, 3,611.65 and 1,422.13

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Solution

The fourth proportional to 2,617.15, 3,611.65 and 1,422.13 is: 1,962.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,617.15 : 3,611.65 = 1,422.13 : x
  2. Step 2: Convert to fraction form
    2,617.15/3,611.65 = 1,422.13/x
  3. Step 3: Cross multiply
    2,617.15x = 3,611.65 × 1,422.13
  4. Step 4: Simplify right side
    2,617.15x = 5,136,235.81
  5. Step 5: Solve for x
    x = 5,136,235.81/2,617.15
  6. Step 6: Final answer
    x = 1,962.53

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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.