Home / 3,718,257.20-5,130,025.08-2,086,424.72

Finding the Fourth Proportional to 3,718,257.20, 5,130,025.08 and 2,086,424.72

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Solution

The fourth proportional to 3,718,257.20, 5,130,025.08 and 2,086,424.72 is: 2,878,609.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718,257.20 : 5,130,025.08 = 2,086,424.72 : x
  2. Step 2: Convert to fraction form
    3,718,257.20/5,130,025.08 = 2,086,424.72/x
  3. Step 3: Cross multiply
    3,718,257.20x = 5,130,025.08 × 2,086,424.72
  4. Step 4: Simplify right side
    3,718,257.20x = 10,703,411,141,131.98
  5. Step 5: Solve for x
    x = 10,703,411,141,131.98/3,718,257.20
  6. Step 6: Final answer
    x = 2,878,609.67

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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.