Home / 1,396.05-2,094.40-471.59

Finding the Fourth Proportional to 1,396.05, 2,094.40 and 471.59

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Solution

The fourth proportional to 1,396.05, 2,094.40 and 471.59 is: 707.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396.05 : 2,094.40 = 471.59 : x
  2. Step 2: Convert to fraction form
    1,396.05/2,094.40 = 471.59/x
  3. Step 3: Cross multiply
    1,396.05x = 2,094.40 × 471.59
  4. Step 4: Simplify right side
    1,396.05x = 987,698.10
  5. Step 5: Solve for x
    x = 987,698.10/1,396.05
  6. Step 6: Final answer
    x = 707.49

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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.