Home / 3,316.50-4,962.40-2,078.15

Finding the Fourth Proportional to 3,316.50, 4,962.40 and 2,078.15

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Solution

The fourth proportional to 3,316.50, 4,962.40 and 2,078.15 is: 3,109.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,316.50 : 4,962.40 = 2,078.15 : x
  2. Step 2: Convert to fraction form
    3,316.50/4,962.40 = 2,078.15/x
  3. Step 3: Cross multiply
    3,316.50x = 4,962.40 × 2,078.15
  4. Step 4: Simplify right side
    3,316.50x = 10,312,581.55
  5. Step 5: Solve for x
    x = 10,312,581.55/3,316.50
  6. Step 6: Final answer
    x = 3,109.48

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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.