Home / 3,316.95-4,975.83-1,125.90

Finding the Fourth Proportional to 3,316.95, 4,975.83 and 1,125.90

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Solution

The fourth proportional to 3,316.95, 4,975.83 and 1,125.90 is: 1,688.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,316.95 : 4,975.83 = 1,125.90 : x
  2. Step 2: Convert to fraction form
    3,316.95/4,975.83 = 1,125.90/x
  3. Step 3: Cross multiply
    3,316.95x = 4,975.83 × 1,125.90
  4. Step 4: Simplify right side
    3,316.95x = 5,602,287.00
  5. Step 5: Solve for x
    x = 5,602,287.00/3,316.95
  6. Step 6: Final answer
    x = 1,688.99

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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.