Home / 1,569.48-2,353.49-911.57

Finding the Fourth Proportional to 1,569.48, 2,353.49 and 911.57

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Solution

The fourth proportional to 1,569.48, 2,353.49 and 911.57 is: 1,366.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,569.48 : 2,353.49 = 911.57 : x
  2. Step 2: Convert to fraction form
    1,569.48/2,353.49 = 911.57/x
  3. Step 3: Cross multiply
    1,569.48x = 2,353.49 × 911.57
  4. Step 4: Simplify right side
    1,569.48x = 2,145,360.44
  5. Step 5: Solve for x
    x = 2,145,360.44/1,569.48
  6. Step 6: Final answer
    x = 1,366.92

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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.