Home / 3,485.47-4,806.21-2,775.91

Finding the Fourth Proportional to 3,485.47, 4,806.21 and 2,775.91

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Solution

The fourth proportional to 3,485.47, 4,806.21 and 2,775.91 is: 3,827.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485.47 : 4,806.21 = 2,775.91 : x
  2. Step 2: Convert to fraction form
    3,485.47/4,806.21 = 2,775.91/x
  3. Step 3: Cross multiply
    3,485.47x = 4,806.21 × 2,775.91
  4. Step 4: Simplify right side
    3,485.47x = 13,341,606.40
  5. Step 5: Solve for x
    x = 13,341,606.40/3,485.47
  6. Step 6: Final answer
    x = 3,827.78

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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.