Home / 1,719.86-2,374.02-1,011.96

Finding the Fourth Proportional to 1,719.86, 2,374.02 and 1,011.96

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Solution

The fourth proportional to 1,719.86, 2,374.02 and 1,011.96 is: 1,396.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,719.86 : 2,374.02 = 1,011.96 : x
  2. Step 2: Convert to fraction form
    1,719.86/2,374.02 = 1,011.96/x
  3. Step 3: Cross multiply
    1,719.86x = 2,374.02 × 1,011.96
  4. Step 4: Simplify right side
    1,719.86x = 2,402,413.28
  5. Step 5: Solve for x
    x = 2,402,413.28/1,719.86
  6. Step 6: Final answer
    x = 1,396.87

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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.