Home / 1,535.80-2,119.87-1,457.44

Finding the Fourth Proportional to 1,535.80, 2,119.87 and 1,457.44

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Solution

The fourth proportional to 1,535.80, 2,119.87 and 1,457.44 is: 2,011.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,535.80 : 2,119.87 = 1,457.44 : x
  2. Step 2: Convert to fraction form
    1,535.80/2,119.87 = 1,457.44/x
  3. Step 3: Cross multiply
    1,535.80x = 2,119.87 × 1,457.44
  4. Step 4: Simplify right side
    1,535.80x = 3,089,583.33
  5. Step 5: Solve for x
    x = 3,089,583.33/1,535.80
  6. Step 6: Final answer
    x = 2,011.71

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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.