Home / 2,786.19-3,845.51-1,607.10

Finding the Fourth Proportional to 2,786.19, 3,845.51 and 1,607.10

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Solution

The fourth proportional to 2,786.19, 3,845.51 and 1,607.10 is: 2,218.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786.19 : 3,845.51 = 1,607.10 : x
  2. Step 2: Convert to fraction form
    2,786.19/3,845.51 = 1,607.10/x
  3. Step 3: Cross multiply
    2,786.19x = 3,845.51 × 1,607.10
  4. Step 4: Simplify right side
    2,786.19x = 6,180,119.12
  5. Step 5: Solve for x
    x = 6,180,119.12/2,786.19
  6. Step 6: Final answer
    x = 2,218.13

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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.