Home / 1,911.48-2,865.18-1,252.56

Finding the Fourth Proportional to 1,911.48, 2,865.18 and 1,252.56

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Solution

The fourth proportional to 1,911.48, 2,865.18 and 1,252.56 is: 1,877.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,911.48 : 2,865.18 = 1,252.56 : x
  2. Step 2: Convert to fraction form
    1,911.48/2,865.18 = 1,252.56/x
  3. Step 3: Cross multiply
    1,911.48x = 2,865.18 × 1,252.56
  4. Step 4: Simplify right side
    1,911.48x = 3,588,809.86
  5. Step 5: Solve for x
    x = 3,588,809.86/1,911.48
  6. Step 6: Final answer
    x = 1,877.50

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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.