Home / 2,852.42-4,280.45-1,879.20

Finding the Fourth Proportional to 2,852.42, 4,280.45 and 1,879.20

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Solution

The fourth proportional to 2,852.42, 4,280.45 and 1,879.20 is: 2,820.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,852.42 : 4,280.45 = 1,879.20 : x
  2. Step 2: Convert to fraction form
    2,852.42/4,280.45 = 1,879.20/x
  3. Step 3: Cross multiply
    2,852.42x = 4,280.45 × 1,879.20
  4. Step 4: Simplify right side
    2,852.42x = 8,043,812.24
  5. Step 5: Solve for x
    x = 8,043,812.24/2,852.42
  6. Step 6: Final answer
    x = 2,820.00

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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.