Home / 3,483.12-4,806.77-1,911.21

Finding the Fourth Proportional to 3,483.12, 4,806.77 and 1,911.21

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Solution

The fourth proportional to 3,483.12, 4,806.77 and 1,911.21 is: 2,637.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,483.12 : 4,806.77 = 1,911.21 : x
  2. Step 2: Convert to fraction form
    3,483.12/4,806.77 = 1,911.21/x
  3. Step 3: Cross multiply
    3,483.12x = 4,806.77 × 1,911.21
  4. Step 4: Simplify right side
    3,483.12x = 9,186,722.86
  5. Step 5: Solve for x
    x = 9,186,722.86/3,483.12
  6. Step 6: Final answer
    x = 2,637.50

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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.