Home / 1,515.86-2,092.08-926.27

Finding the Fourth Proportional to 1,515.86, 2,092.08 and 926.27

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Solution

The fourth proportional to 1,515.86, 2,092.08 and 926.27 is: 1,278.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515.86 : 2,092.08 = 926.27 : x
  2. Step 2: Convert to fraction form
    1,515.86/2,092.08 = 926.27/x
  3. Step 3: Cross multiply
    1,515.86x = 2,092.08 × 926.27
  4. Step 4: Simplify right side
    1,515.86x = 1,937,830.94
  5. Step 5: Solve for x
    x = 1,937,830.94/1,515.86
  6. Step 6: Final answer
    x = 1,278.37

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1.5x scale

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.