Home / 1,990.36-2,970.93-1,843.75

Finding the Fourth Proportional to 1,990.36, 2,970.93 and 1,843.75

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Solution

The fourth proportional to 1,990.36, 2,970.93 and 1,843.75 is: 2,752.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990.36 : 2,970.93 = 1,843.75 : x
  2. Step 2: Convert to fraction form
    1,990.36/2,970.93 = 1,843.75/x
  3. Step 3: Cross multiply
    1,990.36x = 2,970.93 × 1,843.75
  4. Step 4: Simplify right side
    1,990.36x = 5,477,652.19
  5. Step 5: Solve for x
    x = 5,477,652.19/1,990.36
  6. Step 6: Final answer
    x = 2,752.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.