Home / 4,089.89-6,135.81-1,316.81

Finding the Fourth Proportional to 4,089.89, 6,135.81 and 1,316.81

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Solution

The fourth proportional to 4,089.89, 6,135.81 and 1,316.81 is: 1,975.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,089.89 : 6,135.81 = 1,316.81 : x
  2. Step 2: Convert to fraction form
    4,089.89/6,135.81 = 1,316.81/x
  3. Step 3: Cross multiply
    4,089.89x = 6,135.81 × 1,316.81
  4. Step 4: Simplify right side
    4,089.89x = 8,079,665.29
  5. Step 5: Solve for x
    x = 8,079,665.29/4,089.89
  6. Step 6: Final answer
    x = 1,975.52

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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.