Home / 1,945.18-2,683.35-1,356.22

Finding the Fourth Proportional to 1,945.18, 2,683.35 and 1,356.22

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Solution

The fourth proportional to 1,945.18, 2,683.35 and 1,356.22 is: 1,870.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,945.18 : 2,683.35 = 1,356.22 : x
  2. Step 2: Convert to fraction form
    1,945.18/2,683.35 = 1,356.22/x
  3. Step 3: Cross multiply
    1,945.18x = 2,683.35 × 1,356.22
  4. Step 4: Simplify right side
    1,945.18x = 3,639,212.94
  5. Step 5: Solve for x
    x = 3,639,212.94/1,945.18
  6. Step 6: Final answer
    x = 1,870.89

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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.