Home / 3,104.60-4,656.90-1,875.80

Finding the Fourth Proportional to 3,104.60, 4,656.90 and 1,875.80

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Solution

The fourth proportional to 3,104.60, 4,656.90 and 1,875.80 is: 2,813.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,104.60 : 4,656.90 = 1,875.80 : x
  2. Step 2: Convert to fraction form
    3,104.60/4,656.90 = 1,875.80/x
  3. Step 3: Cross multiply
    3,104.60x = 4,656.90 × 1,875.80
  4. Step 4: Simplify right side
    3,104.60x = 8,735,413.02
  5. Step 5: Solve for x
    x = 8,735,413.02/3,104.60
  6. Step 6: Final answer
    x = 2,813.70

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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.