Home / 6,818.28-9,407.80-4,129.08

Finding the Fourth Proportional to 6,818.28, 9,407.80 and 4,129.08

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Solution

The fourth proportional to 6,818.28, 9,407.80 and 4,129.08 is: 5,697.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,818.28 : 9,407.80 = 4,129.08 : x
  2. Step 2: Convert to fraction form
    6,818.28/9,407.80 = 4,129.08/x
  3. Step 3: Cross multiply
    6,818.28x = 9,407.80 × 4,129.08
  4. Step 4: Simplify right side
    6,818.28x = 38,845,558.82
  5. Step 5: Solve for x
    x = 38,845,558.82/6,818.28
  6. Step 6: Final answer
    x = 5,697.27

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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.