Home / 1,027.42-1,541.40-378.16

Finding the Fourth Proportional to 1,027.42, 1,541.40 and 378.16

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Solution

The fourth proportional to 1,027.42, 1,541.40 and 378.16 is: 567.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,027.42 : 1,541.40 = 378.16 : x
  2. Step 2: Convert to fraction form
    1,027.42/1,541.40 = 378.16/x
  3. Step 3: Cross multiply
    1,027.42x = 1,541.40 × 378.16
  4. Step 4: Simplify right side
    1,027.42x = 582,895.82
  5. Step 5: Solve for x
    x = 582,895.82/1,027.42
  6. Step 6: Final answer
    x = 567.34

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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.