Home / 1,955.06-2,698.85-1,247.84

Finding the Fourth Proportional to 1,955.06, 2,698.85 and 1,247.84

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Solution

The fourth proportional to 1,955.06, 2,698.85 and 1,247.84 is: 1,722.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,955.06 : 2,698.85 = 1,247.84 : x
  2. Step 2: Convert to fraction form
    1,955.06/2,698.85 = 1,247.84/x
  3. Step 3: Cross multiply
    1,955.06x = 2,698.85 × 1,247.84
  4. Step 4: Simplify right side
    1,955.06x = 3,367,722.61
  5. Step 5: Solve for x
    x = 3,367,722.61/1,955.06
  6. Step 6: Final answer
    x = 1,722.57

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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.