Home / 1,539.60-2,124.36-941.94

Finding the Fourth Proportional to 1,539.60, 2,124.36 and 941.94

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Solution

The fourth proportional to 1,539.60, 2,124.36 and 941.94 is: 1,299.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,539.60 : 2,124.36 = 941.94 : x
  2. Step 2: Convert to fraction form
    1,539.60/2,124.36 = 941.94/x
  3. Step 3: Cross multiply
    1,539.60x = 2,124.36 × 941.94
  4. Step 4: Simplify right side
    1,539.60x = 2,001,019.66
  5. Step 5: Solve for x
    x = 2,001,019.66/1,539.60
  6. Step 6: Final answer
    x = 1,299.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.