Home / 1,811.45-2,501.08-1,413.55

Finding the Fourth Proportional to 1,811.45, 2,501.08 and 1,413.55

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Solution

The fourth proportional to 1,811.45, 2,501.08 and 1,413.55 is: 1,951.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,811.45 : 2,501.08 = 1,413.55 : x
  2. Step 2: Convert to fraction form
    1,811.45/2,501.08 = 1,413.55/x
  3. Step 3: Cross multiply
    1,811.45x = 2,501.08 × 1,413.55
  4. Step 4: Simplify right side
    1,811.45x = 3,535,401.63
  5. Step 5: Solve for x
    x = 3,535,401.63/1,811.45
  6. Step 6: Final answer
    x = 1,951.70

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1.5x scale

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.