Home / 2,681,938.20-4,022,907.30-2,388,005.40

Finding the Fourth Proportional to 2,681,938.20, 4,022,907.30 and 2,388,005.40

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Solution

The fourth proportional to 2,681,938.20, 4,022,907.30 and 2,388,005.40 is: 3,582,008.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,681,938.20 : 4,022,907.30 = 2,388,005.40 : x
  2. Step 2: Convert to fraction form
    2,681,938.20/4,022,907.30 = 2,388,005.40/x
  3. Step 3: Cross multiply
    2,681,938.20x = 4,022,907.30 × 2,388,005.40
  4. Step 4: Simplify right side
    2,681,938.20x = 9,606,724,356,099.42
  5. Step 5: Solve for x
    x = 9,606,724,356,099.42/2,681,938.20
  6. Step 6: Final answer
    x = 3,582,008.10

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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.