Home / 2,749.40-4,118.70-1,874.60

Finding the Fourth Proportional to 2,749.40, 4,118.70 and 1,874.60

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Solution

The fourth proportional to 2,749.40, 4,118.70 and 1,874.60 is: 2,808.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,749.40 : 4,118.70 = 1,874.60 : x
  2. Step 2: Convert to fraction form
    2,749.40/4,118.70 = 1,874.60/x
  3. Step 3: Cross multiply
    2,749.40x = 4,118.70 × 1,874.60
  4. Step 4: Simplify right side
    2,749.40x = 7,720,915.02
  5. Step 5: Solve for x
    x = 7,720,915.02/2,749.40
  6. Step 6: Final answer
    x = 2,808.22

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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.