Home / 2,485.10-3,428.70-1,777.16

Finding the Fourth Proportional to 2,485.10, 3,428.70 and 1,777.16

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Solution

The fourth proportional to 2,485.10, 3,428.70 and 1,777.16 is: 2,451.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,485.10 : 3,428.70 = 1,777.16 : x
  2. Step 2: Convert to fraction form
    2,485.10/3,428.70 = 1,777.16/x
  3. Step 3: Cross multiply
    2,485.10x = 3,428.70 × 1,777.16
  4. Step 4: Simplify right side
    2,485.10x = 6,093,348.49
  5. Step 5: Solve for x
    x = 6,093,348.49/2,485.10
  6. Step 6: Final answer
    x = 2,451.95

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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.