Home / 3,109.64-4,641.71-2,740.60

Finding the Fourth Proportional to 3,109.64, 4,641.71 and 2,740.60

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Solution

The fourth proportional to 3,109.64, 4,641.71 and 2,740.60 is: 4,090.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.64 : 4,641.71 = 2,740.60 : x
  2. Step 2: Convert to fraction form
    3,109.64/4,641.71 = 2,740.60/x
  3. Step 3: Cross multiply
    3,109.64x = 4,641.71 × 2,740.60
  4. Step 4: Simplify right side
    3,109.64x = 12,721,047.22
  5. Step 5: Solve for x
    x = 12,721,047.22/3,109.64
  6. Step 6: Final answer
    x = 4,090.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.