Home / 5,128.32-7,699.77-4,859.40

Finding the Fourth Proportional to 5,128.32, 7,699.77 and 4,859.40

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Solution

The fourth proportional to 5,128.32, 7,699.77 and 4,859.40 is: 7,296.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,128.32 : 7,699.77 = 4,859.40 : x
  2. Step 2: Convert to fraction form
    5,128.32/7,699.77 = 4,859.40/x
  3. Step 3: Cross multiply
    5,128.32x = 7,699.77 × 4,859.40
  4. Step 4: Simplify right side
    5,128.32x = 37,416,262.34
  5. Step 5: Solve for x
    x = 37,416,262.34/5,128.32
  6. Step 6: Final answer
    x = 7,296.01

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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.