Home / 2,275.45-3,413.58-631.96

Finding the Fourth Proportional to 2,275.45, 3,413.58 and 631.96

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Solution

The fourth proportional to 2,275.45, 3,413.58 and 631.96 is: 948.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,275.45 : 3,413.58 = 631.96 : x
  2. Step 2: Convert to fraction form
    2,275.45/3,413.58 = 631.96/x
  3. Step 3: Cross multiply
    2,275.45x = 3,413.58 × 631.96
  4. Step 4: Simplify right side
    2,275.45x = 2,157,246.02
  5. Step 5: Solve for x
    x = 2,157,246.02/2,275.45
  6. Step 6: Final answer
    x = 948.05

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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.