Home / 1,955.32-2,698.41-1,071.13

Finding the Fourth Proportional to 1,955.32, 2,698.41 and 1,071.13

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Solution

The fourth proportional to 1,955.32, 2,698.41 and 1,071.13 is: 1,478.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,955.32 : 2,698.41 = 1,071.13 : x
  2. Step 2: Convert to fraction form
    1,955.32/2,698.41 = 1,071.13/x
  3. Step 3: Cross multiply
    1,955.32x = 2,698.41 × 1,071.13
  4. Step 4: Simplify right side
    1,955.32x = 2,890,347.90
  5. Step 5: Solve for x
    x = 2,890,347.90/1,955.32
  6. Step 6: Final answer
    x = 1,478.20

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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.