Home / 3,677.15-5,075.21-2,184.78

Finding the Fourth Proportional to 3,677.15, 5,075.21 and 2,184.78

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Solution

The fourth proportional to 3,677.15, 5,075.21 and 2,184.78 is: 3,015.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,677.15 : 5,075.21 = 2,184.78 : x
  2. Step 2: Convert to fraction form
    3,677.15/5,075.21 = 2,184.78/x
  3. Step 3: Cross multiply
    3,677.15x = 5,075.21 × 2,184.78
  4. Step 4: Simplify right side
    3,677.15x = 11,088,244.51
  5. Step 5: Solve for x
    x = 11,088,244.51/3,677.15
  6. Step 6: Final answer
    x = 3,015.44

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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.