Home / 3,907.08-5,386.32-2,646.14

Finding the Fourth Proportional to 3,907.08, 5,386.32 and 2,646.14

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Solution

The fourth proportional to 3,907.08, 5,386.32 and 2,646.14 is: 3,647.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,907.08 : 5,386.32 = 2,646.14 : x
  2. Step 2: Convert to fraction form
    3,907.08/5,386.32 = 2,646.14/x
  3. Step 3: Cross multiply
    3,907.08x = 5,386.32 × 2,646.14
  4. Step 4: Simplify right side
    3,907.08x = 14,252,929.87
  5. Step 5: Solve for x
    x = 14,252,929.87/3,907.08
  6. Step 6: Final answer
    x = 3,647.97

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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.