Home / 7,065.20-9,749.84-4,375.72

Finding the Fourth Proportional to 7,065.20, 9,749.84 and 4,375.72

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Solution

The fourth proportional to 7,065.20, 9,749.84 and 4,375.72 is: 6,038.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,065.20 : 9,749.84 = 4,375.72 : x
  2. Step 2: Convert to fraction form
    7,065.20/9,749.84 = 4,375.72/x
  3. Step 3: Cross multiply
    7,065.20x = 9,749.84 × 4,375.72
  4. Step 4: Simplify right side
    7,065.20x = 42,662,569.88
  5. Step 5: Solve for x
    x = 42,662,569.88/7,065.20
  6. Step 6: Final answer
    x = 6,038.41

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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.