Home / 1,326.15-1,826.63-1,227.63

Finding the Fourth Proportional to 1,326.15, 1,826.63 and 1,227.63

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Solution

The fourth proportional to 1,326.15, 1,826.63 and 1,227.63 is: 1,690.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326.15 : 1,826.63 = 1,227.63 : x
  2. Step 2: Convert to fraction form
    1,326.15/1,826.63 = 1,227.63/x
  3. Step 3: Cross multiply
    1,326.15x = 1,826.63 × 1,227.63
  4. Step 4: Simplify right side
    1,326.15x = 2,242,422.51
  5. Step 5: Solve for x
    x = 2,242,422.51/1,326.15
  6. Step 6: Final answer
    x = 1,690.93

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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.