Home / 3,404.34-4,697.76-1,912.40

Finding the Fourth Proportional to 3,404.34, 4,697.76 and 1,912.40

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Solution

The fourth proportional to 3,404.34, 4,697.76 and 1,912.40 is: 2,638.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,404.34 : 4,697.76 = 1,912.40 : x
  2. Step 2: Convert to fraction form
    3,404.34/4,697.76 = 1,912.40/x
  3. Step 3: Cross multiply
    3,404.34x = 4,697.76 × 1,912.40
  4. Step 4: Simplify right side
    3,404.34x = 8,983,996.22
  5. Step 5: Solve for x
    x = 8,983,996.22/3,404.34
  6. Step 6: Final answer
    x = 2,638.98

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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.