Home / 1,684.08-2,326.85-1,307.51

Finding the Fourth Proportional to 1,684.08, 2,326.85 and 1,307.51

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Solution

The fourth proportional to 1,684.08, 2,326.85 and 1,307.51 is: 1,806.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,684.08 : 2,326.85 = 1,307.51 : x
  2. Step 2: Convert to fraction form
    1,684.08/2,326.85 = 1,307.51/x
  3. Step 3: Cross multiply
    1,684.08x = 2,326.85 × 1,307.51
  4. Step 4: Simplify right side
    1,684.08x = 3,042,371.28
  5. Step 5: Solve for x
    x = 3,042,371.28/1,684.08
  6. Step 6: Final answer
    x = 1,806.55

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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.