Home / 6,840.42-9,440.01-4,151.18

Finding the Fourth Proportional to 6,840.42, 9,440.01 and 4,151.18

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Solution

The fourth proportional to 6,840.42, 9,440.01 and 4,151.18 is: 5,728.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,840.42 : 9,440.01 = 4,151.18 : x
  2. Step 2: Convert to fraction form
    6,840.42/9,440.01 = 4,151.18/x
  3. Step 3: Cross multiply
    6,840.42x = 9,440.01 × 4,151.18
  4. Step 4: Simplify right side
    6,840.42x = 39,187,133.51
  5. Step 5: Solve for x
    x = 39,187,133.51/6,840.42
  6. Step 6: Final answer
    x = 5,728.76

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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.