Home / 1,113.05-1,669.68-564.89

Finding the Fourth Proportional to 1,113.05, 1,669.68 and 564.89

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Solution

The fourth proportional to 1,113.05, 1,669.68 and 564.89 is: 847.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113.05 : 1,669.68 = 564.89 : x
  2. Step 2: Convert to fraction form
    1,113.05/1,669.68 = 564.89/x
  3. Step 3: Cross multiply
    1,113.05x = 1,669.68 × 564.89
  4. Step 4: Simplify right side
    1,113.05x = 943,177.19
  5. Step 5: Solve for x
    x = 943,177.19/1,113.05
  6. Step 6: Final answer
    x = 847.38

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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.