Home / 3,151.89-4,728.09-1,071.06

Finding the Fourth Proportional to 3,151.89, 4,728.09 and 1,071.06

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Solution

The fourth proportional to 3,151.89, 4,728.09 and 1,071.06 is: 1,606.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.89 : 4,728.09 = 1,071.06 : x
  2. Step 2: Convert to fraction form
    3,151.89/4,728.09 = 1,071.06/x
  3. Step 3: Cross multiply
    3,151.89x = 4,728.09 × 1,071.06
  4. Step 4: Simplify right side
    3,151.89x = 5,064,068.08
  5. Step 5: Solve for x
    x = 5,064,068.08/3,151.89
  6. Step 6: Final answer
    x = 1,606.68

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1.5x scale

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.