Home / 1,941,121.31-2,911,684.05-1,938,317.90

Finding the Fourth Proportional to 1,941,121.31, 2,911,684.05 and 1,938,317.90

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Solution

The fourth proportional to 1,941,121.31, 2,911,684.05 and 1,938,317.90 is: 2,907,478.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941,121.31 : 2,911,684.05 = 1,938,317.90 : x
  2. Step 2: Convert to fraction form
    1,941,121.31/2,911,684.05 = 1,938,317.90/x
  3. Step 3: Cross multiply
    1,941,121.31x = 2,911,684.05 × 1,938,317.90
  4. Step 4: Simplify right side
    1,941,121.31x = 5,643,769,298,701.07
  5. Step 5: Solve for x
    x = 5,643,769,298,701.07/1,941,121.31
  6. Step 6: Final answer
    x = 2,907,478.93

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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.