Home / 7,077.28-10,615.20-1,883.68

Finding the Fourth Proportional to 7,077.28, 10,615.20 and 1,883.68

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Solution

The fourth proportional to 7,077.28, 10,615.20 and 1,883.68 is: 2,825.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,077.28 : 10,615.20 = 1,883.68 : x
  2. Step 2: Convert to fraction form
    7,077.28/10,615.20 = 1,883.68/x
  3. Step 3: Cross multiply
    7,077.28x = 10,615.20 × 1,883.68
  4. Step 4: Simplify right side
    7,077.28x = 19,995,639.94
  5. Step 5: Solve for x
    x = 19,995,639.94/7,077.28
  6. Step 6: Final answer
    x = 2,825.33

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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.