Home / 3,403.74-4,697.16-1,911.95

Finding the Fourth Proportional to 3,403.74, 4,697.16 and 1,911.95

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Solution

The fourth proportional to 3,403.74, 4,697.16 and 1,911.95 is: 2,638.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,403.74 : 4,697.16 = 1,911.95 : x
  2. Step 2: Convert to fraction form
    3,403.74/4,697.16 = 1,911.95/x
  3. Step 3: Cross multiply
    3,403.74x = 4,697.16 × 1,911.95
  4. Step 4: Simplify right side
    3,403.74x = 8,980,711.58
  5. Step 5: Solve for x
    x = 8,980,711.58/3,403.74
  6. Step 6: Final answer
    x = 2,638.48

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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.