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Finding the Fourth Proportional to 2,852.70, 4,283.10 and 1,759.20

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Solution

The fourth proportional to 2,852.70, 4,283.10 and 1,759.20 is: 2,641.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,852.70 : 4,283.10 = 1,759.20 : x
  2. Step 2: Convert to fraction form
    2,852.70/4,283.10 = 1,759.20/x
  3. Step 3: Cross multiply
    2,852.70x = 4,283.10 × 1,759.20
  4. Step 4: Simplify right side
    2,852.70x = 7,534,829.52
  5. Step 5: Solve for x
    x = 7,534,829.52/2,852.70
  6. Step 6: Final answer
    x = 2,641.30

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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.