Home / 2,485.36-3,429.87-1,366.28

Finding the Fourth Proportional to 2,485.36, 3,429.87 and 1,366.28

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Solution

The fourth proportional to 2,485.36, 3,429.87 and 1,366.28 is: 1,885.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,485.36 : 3,429.87 = 1,366.28 : x
  2. Step 2: Convert to fraction form
    2,485.36/3,429.87 = 1,366.28/x
  3. Step 3: Cross multiply
    2,485.36x = 3,429.87 × 1,366.28
  4. Step 4: Simplify right side
    2,485.36x = 4,686,162.78
  5. Step 5: Solve for x
    x = 4,686,162.78/2,485.36
  6. Step 6: Final answer
    x = 1,885.51

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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.