Home / 4,812.75-7,220.48-1,852.55

Finding the Fourth Proportional to 4,812.75, 7,220.48 and 1,852.55

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Solution

The fourth proportional to 4,812.75, 7,220.48 and 1,852.55 is: 2,779.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,812.75 : 7,220.48 = 1,852.55 : x
  2. Step 2: Convert to fraction form
    4,812.75/7,220.48 = 1,852.55/x
  3. Step 3: Cross multiply
    4,812.75x = 7,220.48 × 1,852.55
  4. Step 4: Simplify right side
    4,812.75x = 13,376,254.86
  5. Step 5: Solve for x
    x = 13,376,254.86/4,812.75
  6. Step 6: Final answer
    x = 2,779.34

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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.