Home / 3,316.52-4,975.08-1,125.40

Finding the Fourth Proportional to 3,316.52, 4,975.08 and 1,125.40

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Solution

The fourth proportional to 3,316.52, 4,975.08 and 1,125.40 is: 1,688.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,316.52 : 4,975.08 = 1,125.40 : x
  2. Step 2: Convert to fraction form
    3,316.52/4,975.08 = 1,125.40/x
  3. Step 3: Cross multiply
    3,316.52x = 4,975.08 × 1,125.40
  4. Step 4: Simplify right side
    3,316.52x = 5,598,955.03
  5. Step 5: Solve for x
    x = 5,598,955.03/3,316.52
  6. Step 6: Final answer
    x = 1,688.20

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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.