Home / 2,207,886.21-3,046,436.31-1,289,938.07

Finding the Fourth Proportional to 2,207,886.21, 3,046,436.31 and 1,289,938.07

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Solution

The fourth proportional to 2,207,886.21, 3,046,436.31 and 1,289,938.07 is: 1,779,853.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,207,886.21 : 3,046,436.31 = 1,289,938.07 : x
  2. Step 2: Convert to fraction form
    2,207,886.21/3,046,436.31 = 1,289,938.07/x
  3. Step 3: Cross multiply
    2,207,886.21x = 3,046,436.31 × 1,289,938.07
  4. Step 4: Simplify right side
    2,207,886.21x = 3,929,714,167,872.64
  5. Step 5: Solve for x
    x = 3,929,714,167,872.64/2,207,886.21
  6. Step 6: Final answer
    x = 1,779,853.58

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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.