Home / 7,177.20-9,903.48-4,032.78

Finding the Fourth Proportional to 7,177.20, 9,903.48 and 4,032.78

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Solution

The fourth proportional to 7,177.20, 9,903.48 and 4,032.78 is: 5,564.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,177.20 : 9,903.48 = 4,032.78 : x
  2. Step 2: Convert to fraction form
    7,177.20/9,903.48 = 4,032.78/x
  3. Step 3: Cross multiply
    7,177.20x = 9,903.48 × 4,032.78
  4. Step 4: Simplify right side
    7,177.20x = 39,938,556.07
  5. Step 5: Solve for x
    x = 39,938,556.07/7,177.20
  6. Step 6: Final answer
    x = 5,564.64

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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.