Home / 5,289.37-7,299.31-2,931.51

Finding the Fourth Proportional to 5,289.37, 7,299.31 and 2,931.51

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Solution

The fourth proportional to 5,289.37, 7,299.31 and 2,931.51 is: 4,045.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,289.37 : 7,299.31 = 2,931.51 : x
  2. Step 2: Convert to fraction form
    5,289.37/7,299.31 = 2,931.51/x
  3. Step 3: Cross multiply
    5,289.37x = 7,299.31 × 2,931.51
  4. Step 4: Simplify right side
    5,289.37x = 21,398,000.26
  5. Step 5: Solve for x
    x = 21,398,000.26/5,289.37
  6. Step 6: Final answer
    x = 4,045.47

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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.