Home / 4,129.02-5,699.34-2,786.58

Finding the Fourth Proportional to 4,129.02, 5,699.34 and 2,786.58

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Solution

The fourth proportional to 4,129.02, 5,699.34 and 2,786.58 is: 3,846.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,129.02 : 5,699.34 = 2,786.58 : x
  2. Step 2: Convert to fraction form
    4,129.02/5,699.34 = 2,786.58/x
  3. Step 3: Cross multiply
    4,129.02x = 5,699.34 × 2,786.58
  4. Step 4: Simplify right side
    4,129.02x = 15,881,666.86
  5. Step 5: Solve for x
    x = 15,881,666.86/4,129.02
  6. Step 6: Final answer
    x = 3,846.35

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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.