Home / 2,131,215.09-3,181,275.48-1,862,170.35

Finding the Fourth Proportional to 2,131,215.09, 3,181,275.48 and 1,862,170.35

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Solution

The fourth proportional to 2,131,215.09, 3,181,275.48 and 1,862,170.35 is: 2,779,671.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131,215.09 : 3,181,275.48 = 1,862,170.35 : x
  2. Step 2: Convert to fraction form
    2,131,215.09/3,181,275.48 = 1,862,170.35/x
  3. Step 3: Cross multiply
    2,131,215.09x = 3,181,275.48 × 1,862,170.35
  4. Step 4: Simplify right side
    2,131,215.09x = 5,924,076,874,038.02
  5. Step 5: Solve for x
    x = 5,924,076,874,038.02/2,131,215.09
  6. Step 6: Final answer
    x = 2,779,671.04

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.