Home / 3,136.32-4,705.28-1,188.56

Finding the Fourth Proportional to 3,136.32, 4,705.28 and 1,188.56

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Solution

The fourth proportional to 3,136.32, 4,705.28 and 1,188.56 is: 1,783.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.32 : 4,705.28 = 1,188.56 : x
  2. Step 2: Convert to fraction form
    3,136.32/4,705.28 = 1,188.56/x
  3. Step 3: Cross multiply
    3,136.32x = 4,705.28 × 1,188.56
  4. Step 4: Simplify right side
    3,136.32x = 5,592,507.60
  5. Step 5: Solve for x
    x = 5,592,507.60/3,136.32
  6. Step 6: Final answer
    x = 1,783.14

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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.