Home / 6,984.48-10,478.36-3,090

Finding the Fourth Proportional to 6,984.48, 10,478.36 and 3,090

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Solution

The fourth proportional to 6,984.48, 10,478.36 and 3,090 is: 4,635.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,984.48 : 10,478.36 = 3,090 : x
  2. Step 2: Convert to fraction form
    6,984.48/10,478.36 = 3,090/x
  3. Step 3: Cross multiply
    6,984.48x = 10,478.36 × 3,090
  4. Step 4: Simplify right side
    6,984.48x = 32,378,132.40
  5. Step 5: Solve for x
    x = 32,378,132.40/6,984.48
  6. Step 6: Final answer
    x = 4,635.73

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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.