Home / 3,480.95-4,803.73-1,909.07

Finding the Fourth Proportional to 3,480.95, 4,803.73 and 1,909.07

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Solution

The fourth proportional to 3,480.95, 4,803.73 and 1,909.07 is: 2,634.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,480.95 : 4,803.73 = 1,909.07 : x
  2. Step 2: Convert to fraction form
    3,480.95/4,803.73 = 1,909.07/x
  3. Step 3: Cross multiply
    3,480.95x = 4,803.73 × 1,909.07
  4. Step 4: Simplify right side
    3,480.95x = 9,170,628.04
  5. Step 5: Solve for x
    x = 9,170,628.04/3,480.95
  6. Step 6: Final answer
    x = 2,634.52

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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.