Home / 1,413.60-2,117.52-1,267.92

Finding the Fourth Proportional to 1,413.60, 2,117.52 and 1,267.92

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Solution

The fourth proportional to 1,413.60, 2,117.52 and 1,267.92 is: 1,899.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,413.60 : 2,117.52 = 1,267.92 : x
  2. Step 2: Convert to fraction form
    1,413.60/2,117.52 = 1,267.92/x
  3. Step 3: Cross multiply
    1,413.60x = 2,117.52 × 1,267.92
  4. Step 4: Simplify right side
    1,413.60x = 2,684,845.96
  5. Step 5: Solve for x
    x = 2,684,845.96/1,413.60
  6. Step 6: Final answer
    x = 1,899.30

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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.