Home / 1,919.87-2,875.98-1,479.58

Finding the Fourth Proportional to 1,919.87, 2,875.98 and 1,479.58

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Solution

The fourth proportional to 1,919.87, 2,875.98 and 1,479.58 is: 2,216.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919.87 : 2,875.98 = 1,479.58 : x
  2. Step 2: Convert to fraction form
    1,919.87/2,875.98 = 1,479.58/x
  3. Step 3: Cross multiply
    1,919.87x = 2,875.98 × 1,479.58
  4. Step 4: Simplify right side
    1,919.87x = 4,255,247.83
  5. Step 5: Solve for x
    x = 4,255,247.83/1,919.87
  6. Step 6: Final answer
    x = 2,216.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.