Home / 3,880,459.72-5,355,200.10-2,161,581.40

Finding the Fourth Proportional to 3,880,459.72, 5,355,200.10 and 2,161,581.40

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Solution

The fourth proportional to 3,880,459.72, 5,355,200.10 and 2,161,581.40 is: 2,983,074.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,880,459.72 : 5,355,200.10 = 2,161,581.40 : x
  2. Step 2: Convert to fraction form
    3,880,459.72/5,355,200.10 = 2,161,581.40/x
  3. Step 3: Cross multiply
    3,880,459.72x = 5,355,200.10 × 2,161,581.40
  4. Step 4: Simplify right side
    3,880,459.72x = 11,575,700,929,438.14
  5. Step 5: Solve for x
    x = 11,575,700,929,438.14/3,880,459.72
  6. Step 6: Final answer
    x = 2,983,074.63

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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.