Home / 1,215.07-1,822.60-522.23

Finding the Fourth Proportional to 1,215.07, 1,822.60 and 522.23

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Solution

The fourth proportional to 1,215.07, 1,822.60 and 522.23 is: 783.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215.07 : 1,822.60 = 522.23 : x
  2. Step 2: Convert to fraction form
    1,215.07/1,822.60 = 522.23/x
  3. Step 3: Cross multiply
    1,215.07x = 1,822.60 × 522.23
  4. Step 4: Simplify right side
    1,215.07x = 951,807.94
  5. Step 5: Solve for x
    x = 951,807.94/1,215.07
  6. Step 6: Final answer
    x = 783.33

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1.5x scale

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.