Home / 1,950.66-2,688.93-1,728.18

Finding the Fourth Proportional to 1,950.66, 2,688.93 and 1,728.18

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Solution

The fourth proportional to 1,950.66, 2,688.93 and 1,728.18 is: 2,382.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,950.66 : 2,688.93 = 1,728.18 : x
  2. Step 2: Convert to fraction form
    1,950.66/2,688.93 = 1,728.18/x
  3. Step 3: Cross multiply
    1,950.66x = 2,688.93 × 1,728.18
  4. Step 4: Simplify right side
    1,950.66x = 4,646,955.05
  5. Step 5: Solve for x
    x = 4,646,955.05/1,950.66
  6. Step 6: Final answer
    x = 2,382.25

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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.