Home / 7,201.50-9,938.64-4,015.83

Finding the Fourth Proportional to 7,201.50, 9,938.64 and 4,015.83

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Solution

The fourth proportional to 7,201.50, 9,938.64 and 4,015.83 is: 5,542.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,201.50 : 9,938.64 = 4,015.83 : x
  2. Step 2: Convert to fraction form
    7,201.50/9,938.64 = 4,015.83/x
  3. Step 3: Cross multiply
    7,201.50x = 9,938.64 × 4,015.83
  4. Step 4: Simplify right side
    7,201.50x = 39,911,888.67
  5. Step 5: Solve for x
    x = 39,911,888.67/7,201.50
  6. Step 6: Final answer
    x = 5,542.16

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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.