Home / 3,688.98-5,534.43-1,091.91

Finding the Fourth Proportional to 3,688.98, 5,534.43 and 1,091.91

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Solution

The fourth proportional to 3,688.98, 5,534.43 and 1,091.91 is: 1,638.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,688.98 : 5,534.43 = 1,091.91 : x
  2. Step 2: Convert to fraction form
    3,688.98/5,534.43 = 1,091.91/x
  3. Step 3: Cross multiply
    3,688.98x = 5,534.43 × 1,091.91
  4. Step 4: Simplify right side
    3,688.98x = 6,043,099.46
  5. Step 5: Solve for x
    x = 6,043,099.46/3,688.98
  6. Step 6: Final answer
    x = 1,638.15

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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.