Home / 3,657.60-5,047.32-2,085.60

Finding the Fourth Proportional to 3,657.60, 5,047.32 and 2,085.60

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Solution

The fourth proportional to 3,657.60, 5,047.32 and 2,085.60 is: 2,878.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,657.60 : 5,047.32 = 2,085.60 : x
  2. Step 2: Convert to fraction form
    3,657.60/5,047.32 = 2,085.60/x
  3. Step 3: Cross multiply
    3,657.60x = 5,047.32 × 2,085.60
  4. Step 4: Simplify right side
    3,657.60x = 10,526,690.59
  5. Step 5: Solve for x
    x = 10,526,690.59/3,657.60
  6. Step 6: Final answer
    x = 2,878.03

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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.