Home / 2,439.74-3,362.90-1,907.68

Finding the Fourth Proportional to 2,439.74, 3,362.90 and 1,907.68

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Solution

The fourth proportional to 2,439.74, 3,362.90 and 1,907.68 is: 2,629.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,439.74 : 3,362.90 = 1,907.68 : x
  2. Step 2: Convert to fraction form
    2,439.74/3,362.90 = 1,907.68/x
  3. Step 3: Cross multiply
    2,439.74x = 3,362.90 × 1,907.68
  4. Step 4: Simplify right side
    2,439.74x = 6,415,337.07
  5. Step 5: Solve for x
    x = 6,415,337.07/2,439.74
  6. Step 6: Final answer
    x = 2,629.52

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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.