Home / 1,955.42-2,698.49-1,071.23

Finding the Fourth Proportional to 1,955.42, 2,698.49 and 1,071.23

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Solution

The fourth proportional to 1,955.42, 2,698.49 and 1,071.23 is: 1,478.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,955.42 : 2,698.49 = 1,071.23 : x
  2. Step 2: Convert to fraction form
    1,955.42/2,698.49 = 1,071.23/x
  3. Step 3: Cross multiply
    1,955.42x = 2,698.49 × 1,071.23
  4. Step 4: Simplify right side
    1,955.42x = 2,890,684.59
  5. Step 5: Solve for x
    x = 2,890,684.59/1,955.42
  6. Step 6: Final answer
    x = 1,478.30

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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.