Home / 5,615.40-7,749.19-3,097.45

Finding the Fourth Proportional to 5,615.40, 7,749.19 and 3,097.45

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Solution

The fourth proportional to 5,615.40, 7,749.19 and 3,097.45 is: 4,274.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,615.40 : 7,749.19 = 3,097.45 : x
  2. Step 2: Convert to fraction form
    5,615.40/7,749.19 = 3,097.45/x
  3. Step 3: Cross multiply
    5,615.40x = 7,749.19 × 3,097.45
  4. Step 4: Simplify right side
    5,615.40x = 24,002,701.45
  5. Step 5: Solve for x
    x = 24,002,701.45/5,615.40
  6. Step 6: Final answer
    x = 4,274.44

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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.