Home / 1,110.04-1,664.60-379.68

Finding the Fourth Proportional to 1,110.04, 1,664.60 and 379.68

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Solution

The fourth proportional to 1,110.04, 1,664.60 and 379.68 is: 569.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110.04 : 1,664.60 = 379.68 : x
  2. Step 2: Convert to fraction form
    1,110.04/1,664.60 = 379.68/x
  3. Step 3: Cross multiply
    1,110.04x = 1,664.60 × 379.68
  4. Step 4: Simplify right side
    1,110.04x = 632,005.11
  5. Step 5: Solve for x
    x = 632,005.11/1,110.04
  6. Step 6: Final answer
    x = 569.35

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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.