Home / 1,214.78-1,822.35-474.26

Finding the Fourth Proportional to 1,214.78, 1,822.35 and 474.26

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Solution

The fourth proportional to 1,214.78, 1,822.35 and 474.26 is: 711.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214.78 : 1,822.35 = 474.26 : x
  2. Step 2: Convert to fraction form
    1,214.78/1,822.35 = 474.26/x
  3. Step 3: Cross multiply
    1,214.78x = 1,822.35 × 474.26
  4. Step 4: Simplify right side
    1,214.78x = 864,267.71
  5. Step 5: Solve for x
    x = 864,267.71/1,214.78
  6. Step 6: Final answer
    x = 711.46

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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.