Home / 3,690.18-5,535.08-1,381.50

Finding the Fourth Proportional to 3,690.18, 5,535.08 and 1,381.50

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Solution

The fourth proportional to 3,690.18, 5,535.08 and 1,381.50 is: 2,072.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,690.18 : 5,535.08 = 1,381.50 : x
  2. Step 2: Convert to fraction form
    3,690.18/5,535.08 = 1,381.50/x
  3. Step 3: Cross multiply
    3,690.18x = 5,535.08 × 1,381.50
  4. Step 4: Simplify right side
    3,690.18x = 7,646,713.02
  5. Step 5: Solve for x
    x = 7,646,713.02/3,690.18
  6. Step 6: Final answer
    x = 2,072.18

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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.