Home / 3,871,907.61-5,343,236.90-2,152,991.22

Finding the Fourth Proportional to 3,871,907.61, 5,343,236.90 and 2,152,991.22

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Solution

The fourth proportional to 3,871,907.61, 5,343,236.90 and 2,152,991.22 is: 2,971,130.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871,907.61 : 5,343,236.90 = 2,152,991.22 : x
  2. Step 2: Convert to fraction form
    3,871,907.61/5,343,236.90 = 2,152,991.22/x
  3. Step 3: Cross multiply
    3,871,907.61x = 5,343,236.90 × 2,152,991.22
  4. Step 4: Simplify right side
    3,871,907.61x = 11,503,942,132,080.02
  5. Step 5: Solve for x
    x = 11,503,942,132,080.02/3,871,907.61
  6. Step 6: Final answer
    x = 2,971,130.33

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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.