Home / 6,938.60-10,407.90-2,556.20

Finding the Fourth Proportional to 6,938.60, 10,407.90 and 2,556.20

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Solution

The fourth proportional to 6,938.60, 10,407.90 and 2,556.20 is: 3,834.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,938.60 : 10,407.90 = 2,556.20 : x
  2. Step 2: Convert to fraction form
    6,938.60/10,407.90 = 2,556.20/x
  3. Step 3: Cross multiply
    6,938.60x = 10,407.90 × 2,556.20
  4. Step 4: Simplify right side
    6,938.60x = 26,604,673.98
  5. Step 5: Solve for x
    x = 26,604,673.98/6,938.60
  6. Step 6: Final answer
    x = 3,834.30

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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.