Home / 6,145.56-8,477.64-4,156.79

Finding the Fourth Proportional to 6,145.56, 8,477.64 and 4,156.79

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Solution

The fourth proportional to 6,145.56, 8,477.64 and 4,156.79 is: 5,734.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,145.56 : 8,477.64 = 4,156.79 : x
  2. Step 2: Convert to fraction form
    6,145.56/8,477.64 = 4,156.79/x
  3. Step 3: Cross multiply
    6,145.56x = 8,477.64 × 4,156.79
  4. Step 4: Simplify right side
    6,145.56x = 35,239,769.18
  5. Step 5: Solve for x
    x = 35,239,769.18/6,145.56
  6. Step 6: Final answer
    x = 5,734.18

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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.