Home / 7,811.22-10,783.01-4,982.40

Finding the Fourth Proportional to 7,811.22, 10,783.01 and 4,982.40

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Solution

The fourth proportional to 7,811.22, 10,783.01 and 4,982.40 is: 6,877.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,811.22 : 10,783.01 = 4,982.40 : x
  2. Step 2: Convert to fraction form
    7,811.22/10,783.01 = 4,982.40/x
  3. Step 3: Cross multiply
    7,811.22x = 10,783.01 × 4,982.40
  4. Step 4: Simplify right side
    7,811.22x = 53,725,269.02
  5. Step 5: Solve for x
    x = 53,725,269.02/7,811.22
  6. Step 6: Final answer
    x = 6,877.96

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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.