Home / 1,515.88-2,092.50-1,019.93

Finding the Fourth Proportional to 1,515.88, 2,092.50 and 1,019.93

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Solution

The fourth proportional to 1,515.88, 2,092.50 and 1,019.93 is: 1,407.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515.88 : 2,092.50 = 1,019.93 : x
  2. Step 2: Convert to fraction form
    1,515.88/2,092.50 = 1,019.93/x
  3. Step 3: Cross multiply
    1,515.88x = 2,092.50 × 1,019.93
  4. Step 4: Simplify right side
    1,515.88x = 2,134,197.59
  5. Step 5: Solve for x
    x = 2,134,197.59/1,515.88
  6. Step 6: Final answer
    x = 1,407.90

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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.