Home / 2,178.39-3,004.38-1,653.51

Finding the Fourth Proportional to 2,178.39, 3,004.38 and 1,653.51

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Solution

The fourth proportional to 2,178.39, 3,004.38 and 1,653.51 is: 2,280.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178.39 : 3,004.38 = 1,653.51 : x
  2. Step 2: Convert to fraction form
    2,178.39/3,004.38 = 1,653.51/x
  3. Step 3: Cross multiply
    2,178.39x = 3,004.38 × 1,653.51
  4. Step 4: Simplify right side
    2,178.39x = 4,967,772.37
  5. Step 5: Solve for x
    x = 4,967,772.37/2,178.39
  6. Step 6: Final answer
    x = 2,280.48

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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.