Home / 5,383.75-8,075.32-1,685.55

Finding the Fourth Proportional to 5,383.75, 8,075.32 and 1,685.55

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Solution

The fourth proportional to 5,383.75, 8,075.32 and 1,685.55 is: 2,528.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,383.75 : 8,075.32 = 1,685.55 : x
  2. Step 2: Convert to fraction form
    5,383.75/8,075.32 = 1,685.55/x
  3. Step 3: Cross multiply
    5,383.75x = 8,075.32 × 1,685.55
  4. Step 4: Simplify right side
    5,383.75x = 13,611,355.63
  5. Step 5: Solve for x
    x = 13,611,355.63/5,383.75
  6. Step 6: Final answer
    x = 2,528.23

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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.