Home / 1,954.16-2,693.93-1,393.65

Finding the Fourth Proportional to 1,954.16, 2,693.93 and 1,393.65

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Solution

The fourth proportional to 1,954.16, 2,693.93 and 1,393.65 is: 1,921.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,954.16 : 2,693.93 = 1,393.65 : x
  2. Step 2: Convert to fraction form
    1,954.16/2,693.93 = 1,393.65/x
  3. Step 3: Cross multiply
    1,954.16x = 2,693.93 × 1,393.65
  4. Step 4: Simplify right side
    1,954.16x = 3,754,395.54
  5. Step 5: Solve for x
    x = 3,754,395.54/1,954.16
  6. Step 6: Final answer
    x = 1,921.23

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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.