Home / 3,403.95-4,697.56-1,912.13

Finding the Fourth Proportional to 3,403.95, 4,697.56 and 1,912.13

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Solution

The fourth proportional to 3,403.95, 4,697.56 and 1,912.13 is: 2,638.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,403.95 : 4,697.56 = 1,912.13 : x
  2. Step 2: Convert to fraction form
    3,403.95/4,697.56 = 1,912.13/x
  3. Step 3: Cross multiply
    3,403.95x = 4,697.56 × 1,912.13
  4. Step 4: Simplify right side
    3,403.95x = 8,982,345.40
  5. Step 5: Solve for x
    x = 8,982,345.40/3,403.95
  6. Step 6: Final answer
    x = 2,638.80

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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.