Home / 2,591.15-3,888.54-1,770.21

Finding the Fourth Proportional to 2,591.15, 3,888.54 and 1,770.21

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Solution

The fourth proportional to 2,591.15, 3,888.54 and 1,770.21 is: 2,656.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,591.15 : 3,888.54 = 1,770.21 : x
  2. Step 2: Convert to fraction form
    2,591.15/3,888.54 = 1,770.21/x
  3. Step 3: Cross multiply
    2,591.15x = 3,888.54 × 1,770.21
  4. Step 4: Simplify right side
    2,591.15x = 6,883,532.39
  5. Step 5: Solve for x
    x = 6,883,532.39/2,591.15
  6. Step 6: Final answer
    x = 2,656.56

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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.