Home / 5,313.31-7,970.87-1,615.91

Finding the Fourth Proportional to 5,313.31, 7,970.87 and 1,615.91

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Solution

The fourth proportional to 5,313.31, 7,970.87 and 1,615.91 is: 2,424.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,313.31 : 7,970.87 = 1,615.91 : x
  2. Step 2: Convert to fraction form
    5,313.31/7,970.87 = 1,615.91/x
  3. Step 3: Cross multiply
    5,313.31x = 7,970.87 × 1,615.91
  4. Step 4: Simplify right side
    5,313.31x = 12,880,208.54
  5. Step 5: Solve for x
    x = 12,880,208.54/5,313.31
  6. Step 6: Final answer
    x = 2,424.14

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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.