Home / 1,057.40-1,459.14-591.56

Finding the Fourth Proportional to 1,057.40, 1,459.14 and 591.56

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Solution

The fourth proportional to 1,057.40, 1,459.14 and 591.56 is: 816.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,057.40 : 1,459.14 = 591.56 : x
  2. Step 2: Convert to fraction form
    1,057.40/1,459.14 = 591.56/x
  3. Step 3: Cross multiply
    1,057.40x = 1,459.14 × 591.56
  4. Step 4: Simplify right side
    1,057.40x = 863,168.86
  5. Step 5: Solve for x
    x = 863,168.86/1,057.40
  6. Step 6: Final answer
    x = 816.31

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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.