Home / 1,741.15-2,611.60-816.91

Finding the Fourth Proportional to 1,741.15, 2,611.60 and 816.91

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Solution

The fourth proportional to 1,741.15, 2,611.60 and 816.91 is: 1,225.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,741.15 : 2,611.60 = 816.91 : x
  2. Step 2: Convert to fraction form
    1,741.15/2,611.60 = 816.91/x
  3. Step 3: Cross multiply
    1,741.15x = 2,611.60 × 816.91
  4. Step 4: Simplify right side
    1,741.15x = 2,133,425.01
  5. Step 5: Solve for x
    x = 2,133,425.01/1,741.15
  6. Step 6: Final answer
    x = 1,225.30

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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.