Home / 2,279.26-3,413.38-1,302.40

Finding the Fourth Proportional to 2,279.26, 3,413.38 and 1,302.40

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Solution

The fourth proportional to 2,279.26, 3,413.38 and 1,302.40 is: 1,950.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,279.26 : 3,413.38 = 1,302.40 : x
  2. Step 2: Convert to fraction form
    2,279.26/3,413.38 = 1,302.40/x
  3. Step 3: Cross multiply
    2,279.26x = 3,413.38 × 1,302.40
  4. Step 4: Simplify right side
    2,279.26x = 4,445,586.11
  5. Step 5: Solve for x
    x = 4,445,586.11/2,279.26
  6. Step 6: Final answer
    x = 1,950.45

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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.