Home / 5,828.96-8,031.48-5,115.36

Finding the Fourth Proportional to 5,828.96, 8,031.48 and 5,115.36

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Solution

The fourth proportional to 5,828.96, 8,031.48 and 5,115.36 is: 7,048.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,828.96 : 8,031.48 = 5,115.36 : x
  2. Step 2: Convert to fraction form
    5,828.96/8,031.48 = 5,115.36/x
  3. Step 3: Cross multiply
    5,828.96x = 8,031.48 × 5,115.36
  4. Step 4: Simplify right side
    5,828.96x = 41,083,911.53
  5. Step 5: Solve for x
    x = 41,083,911.53/5,828.96
  6. Step 6: Final answer
    x = 7,048.24

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1.5x scale

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.