Home / 1,347.16-2,021.24-697.48

Finding the Fourth Proportional to 1,347.16, 2,021.24 and 697.48

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Solution

The fourth proportional to 1,347.16, 2,021.24 and 697.48 is: 1,046.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347.16 : 2,021.24 = 697.48 : x
  2. Step 2: Convert to fraction form
    1,347.16/2,021.24 = 697.48/x
  3. Step 3: Cross multiply
    1,347.16x = 2,021.24 × 697.48
  4. Step 4: Simplify right side
    1,347.16x = 1,409,774.48
  5. Step 5: Solve for x
    x = 1,409,774.48/1,347.16
  6. Step 6: Final answer
    x = 1,046.48

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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.