Home / 5,291.76-7,312.38-3,797.31

Finding the Fourth Proportional to 5,291.76, 7,312.38 and 3,797.31

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Solution

The fourth proportional to 5,291.76, 7,312.38 and 3,797.31 is: 5,247.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,291.76 : 7,312.38 = 3,797.31 : x
  2. Step 2: Convert to fraction form
    5,291.76/7,312.38 = 3,797.31/x
  3. Step 3: Cross multiply
    5,291.76x = 7,312.38 × 3,797.31
  4. Step 4: Simplify right side
    5,291.76x = 27,767,373.70
  5. Step 5: Solve for x
    x = 27,767,373.70/5,291.76
  6. Step 6: Final answer
    x = 5,247.29

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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.