Home / 2,820.26-4,230.50-971.36

Finding the Fourth Proportional to 2,820.26, 4,230.50 and 971.36

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Solution

The fourth proportional to 2,820.26, 4,230.50 and 971.36 is: 1,457.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820.26 : 4,230.50 = 971.36 : x
  2. Step 2: Convert to fraction form
    2,820.26/4,230.50 = 971.36/x
  3. Step 3: Cross multiply
    2,820.26x = 4,230.50 × 971.36
  4. Step 4: Simplify right side
    2,820.26x = 4,109,338.48
  5. Step 5: Solve for x
    x = 4,109,338.48/2,820.26
  6. Step 6: Final answer
    x = 1,457.08

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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.