Home / 5,316.32-7,336.41-3,078.60

Finding the Fourth Proportional to 5,316.32, 7,336.41 and 3,078.60

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Solution

The fourth proportional to 5,316.32, 7,336.41 and 3,078.60 is: 4,248.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,316.32 : 7,336.41 = 3,078.60 : x
  2. Step 2: Convert to fraction form
    5,316.32/7,336.41 = 3,078.60/x
  3. Step 3: Cross multiply
    5,316.32x = 7,336.41 × 3,078.60
  4. Step 4: Simplify right side
    5,316.32x = 22,585,871.83
  5. Step 5: Solve for x
    x = 22,585,871.83/5,316.32
  6. Step 6: Final answer
    x = 4,248.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.