Home / 3,852.51-5,779.47-1,220.67

Finding the Fourth Proportional to 3,852.51, 5,779.47 and 1,220.67

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Solution

The fourth proportional to 3,852.51, 5,779.47 and 1,220.67 is: 1,831.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,852.51 : 5,779.47 = 1,220.67 : x
  2. Step 2: Convert to fraction form
    3,852.51/5,779.47 = 1,220.67/x
  3. Step 3: Cross multiply
    3,852.51x = 5,779.47 × 1,220.67
  4. Step 4: Simplify right side
    3,852.51x = 7,054,825.64
  5. Step 5: Solve for x
    x = 7,054,825.64/3,852.51
  6. Step 6: Final answer
    x = 1,831.23

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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.