Home / 4,918.15-7,371.86-2,421.05

Finding the Fourth Proportional to 4,918.15, 7,371.86 and 2,421.05

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Solution

The fourth proportional to 4,918.15, 7,371.86 and 2,421.05 is: 3,628.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,918.15 : 7,371.86 = 2,421.05 : x
  2. Step 2: Convert to fraction form
    4,918.15/7,371.86 = 2,421.05/x
  3. Step 3: Cross multiply
    4,918.15x = 7,371.86 × 2,421.05
  4. Step 4: Simplify right side
    4,918.15x = 17,847,666.34
  5. Step 5: Solve for x
    x = 17,847,666.34/4,918.15
  6. Step 6: Final answer
    x = 3,628.94

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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.