Home / 1,215.48-1,822.86-349.50

Finding the Fourth Proportional to 1,215.48, 1,822.86 and 349.50

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Solution

The fourth proportional to 1,215.48, 1,822.86 and 349.50 is: 524.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215.48 : 1,822.86 = 349.50 : x
  2. Step 2: Convert to fraction form
    1,215.48/1,822.86 = 349.50/x
  3. Step 3: Cross multiply
    1,215.48x = 1,822.86 × 349.50
  4. Step 4: Simplify right side
    1,215.48x = 637,089.57
  5. Step 5: Solve for x
    x = 637,089.57/1,215.48
  6. Step 6: Final answer
    x = 524.15

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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.