Home / 7,778.40-10,735.23-4,946.05

Finding the Fourth Proportional to 7,778.40, 10,735.23 and 4,946.05

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Solution

The fourth proportional to 7,778.40, 10,735.23 and 4,946.05 is: 6,826.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,778.40 : 10,735.23 = 4,946.05 : x
  2. Step 2: Convert to fraction form
    7,778.40/10,735.23 = 4,946.05/x
  3. Step 3: Cross multiply
    7,778.40x = 10,735.23 × 4,946.05
  4. Step 4: Simplify right side
    7,778.40x = 53,096,984.34
  5. Step 5: Solve for x
    x = 53,096,984.34/7,778.40
  6. Step 6: Final answer
    x = 6,826.21

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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.