Home / 1,479.51-2,219.23-383.87

Finding the Fourth Proportional to 1,479.51, 2,219.23 and 383.87

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Solution

The fourth proportional to 1,479.51, 2,219.23 and 383.87 is: 575.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,479.51 : 2,219.23 = 383.87 : x
  2. Step 2: Convert to fraction form
    1,479.51/2,219.23 = 383.87/x
  3. Step 3: Cross multiply
    1,479.51x = 2,219.23 × 383.87
  4. Step 4: Simplify right side
    1,479.51x = 851,895.82
  5. Step 5: Solve for x
    x = 851,895.82/1,479.51
  6. Step 6: Final answer
    x = 575.80

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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.