Home / 3,674.64-5,075.40-2,678.32

Finding the Fourth Proportional to 3,674.64, 5,075.40 and 2,678.32

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Solution

The fourth proportional to 3,674.64, 5,075.40 and 2,678.32 is: 3,699.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,674.64 : 5,075.40 = 2,678.32 : x
  2. Step 2: Convert to fraction form
    3,674.64/5,075.40 = 2,678.32/x
  3. Step 3: Cross multiply
    3,674.64x = 5,075.40 × 2,678.32
  4. Step 4: Simplify right side
    3,674.64x = 13,593,545.33
  5. Step 5: Solve for x
    x = 13,593,545.33/3,674.64
  6. Step 6: Final answer
    x = 3,699.29

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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.