Home / 1,684.39-2,325.09-1,245.82

Finding the Fourth Proportional to 1,684.39, 2,325.09 and 1,245.82

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Solution

The fourth proportional to 1,684.39, 2,325.09 and 1,245.82 is: 1,719.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,684.39 : 2,325.09 = 1,245.82 : x
  2. Step 2: Convert to fraction form
    1,684.39/2,325.09 = 1,245.82/x
  3. Step 3: Cross multiply
    1,684.39x = 2,325.09 × 1,245.82
  4. Step 4: Simplify right side
    1,684.39x = 2,896,643.62
  5. Step 5: Solve for x
    x = 2,896,643.62/1,684.39
  6. Step 6: Final answer
    x = 1,719.70

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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.