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Finding the Fourth Proportional to 5,269.86, 7,904.79 and 1,374.23

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Solution

The fourth proportional to 5,269.86, 7,904.79 and 1,374.23 is: 2,061.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,269.86 : 7,904.79 = 1,374.23 : x
  2. Step 2: Convert to fraction form
    5,269.86/7,904.79 = 1,374.23/x
  3. Step 3: Cross multiply
    5,269.86x = 7,904.79 × 1,374.23
  4. Step 4: Simplify right side
    5,269.86x = 10,863,019.32
  5. Step 5: Solve for x
    x = 10,863,019.32/5,269.86
  6. Step 6: Final answer
    x = 2,061.35

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1.5x scale

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.