Home / 1,829.36-2,740.43-1,211.20

Finding the Fourth Proportional to 1,829.36, 2,740.43 and 1,211.20

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Solution

The fourth proportional to 1,829.36, 2,740.43 and 1,211.20 is: 1,814.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,829.36 : 2,740.43 = 1,211.20 : x
  2. Step 2: Convert to fraction form
    1,829.36/2,740.43 = 1,211.20/x
  3. Step 3: Cross multiply
    1,829.36x = 2,740.43 × 1,211.20
  4. Step 4: Simplify right side
    1,829.36x = 3,319,208.82
  5. Step 5: Solve for x
    x = 3,319,208.82/1,829.36
  6. Step 6: Final answer
    x = 1,814.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.