Home / 1,617.56-2,232.60-1,355.12

Finding the Fourth Proportional to 1,617.56, 2,232.60 and 1,355.12

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Solution

The fourth proportional to 1,617.56, 2,232.60 and 1,355.12 is: 1,870.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,617.56 : 2,232.60 = 1,355.12 : x
  2. Step 2: Convert to fraction form
    1,617.56/2,232.60 = 1,355.12/x
  3. Step 3: Cross multiply
    1,617.56x = 2,232.60 × 1,355.12
  4. Step 4: Simplify right side
    1,617.56x = 3,025,440.91
  5. Step 5: Solve for x
    x = 3,025,440.91/1,617.56
  6. Step 6: Final answer
    x = 1,870.37

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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.