Home / 1,953.02-2,696.20-1,326.90

Finding the Fourth Proportional to 1,953.02, 2,696.20 and 1,326.90

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Solution

The fourth proportional to 1,953.02, 2,696.20 and 1,326.90 is: 1,831.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,953.02 : 2,696.20 = 1,326.90 : x
  2. Step 2: Convert to fraction form
    1,953.02/2,696.20 = 1,326.90/x
  3. Step 3: Cross multiply
    1,953.02x = 2,696.20 × 1,326.90
  4. Step 4: Simplify right side
    1,953.02x = 3,577,587.78
  5. Step 5: Solve for x
    x = 3,577,587.78/1,953.02
  6. Step 6: Final answer
    x = 1,831.82

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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.