Home / 2,675.86-3,692.06-1,556.20

Finding the Fourth Proportional to 2,675.86, 3,692.06 and 1,556.20

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Solution

The fourth proportional to 2,675.86, 3,692.06 and 1,556.20 is: 2,147.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,675.86 : 3,692.06 = 1,556.20 : x
  2. Step 2: Convert to fraction form
    2,675.86/3,692.06 = 1,556.20/x
  3. Step 3: Cross multiply
    2,675.86x = 3,692.06 × 1,556.20
  4. Step 4: Simplify right side
    2,675.86x = 5,745,583.77
  5. Step 5: Solve for x
    x = 5,745,583.77/2,675.86
  6. Step 6: Final answer
    x = 2,147.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.