Home / 1,929.42-2,890.22-1,540.08

Finding the Fourth Proportional to 1,929.42, 2,890.22 and 1,540.08

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Solution

The fourth proportional to 1,929.42, 2,890.22 and 1,540.08 is: 2,307.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929.42 : 2,890.22 = 1,540.08 : x
  2. Step 2: Convert to fraction form
    1,929.42/2,890.22 = 1,540.08/x
  3. Step 3: Cross multiply
    1,929.42x = 2,890.22 × 1,540.08
  4. Step 4: Simplify right side
    1,929.42x = 4,451,162.32
  5. Step 5: Solve for x
    x = 4,451,162.32/1,929.42
  6. Step 6: Final answer
    x = 2,307.00

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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.