Home / 2,852.20-4,280.70-1,392.60

Finding the Fourth Proportional to 2,852.20, 4,280.70 and 1,392.60

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Solution

The fourth proportional to 2,852.20, 4,280.70 and 1,392.60 is: 2,090.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,852.20 : 4,280.70 = 1,392.60 : x
  2. Step 2: Convert to fraction form
    2,852.20/4,280.70 = 1,392.60/x
  3. Step 3: Cross multiply
    2,852.20x = 4,280.70 × 1,392.60
  4. Step 4: Simplify right side
    2,852.20x = 5,961,302.82
  5. Step 5: Solve for x
    x = 5,961,302.82/2,852.20
  6. Step 6: Final answer
    x = 2,090.07

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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.