Home / 7,102.85-9,801.69-4,451.72

Finding the Fourth Proportional to 7,102.85, 9,801.69 and 4,451.72

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Solution

The fourth proportional to 7,102.85, 9,801.69 and 4,451.72 is: 6,143.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,102.85 : 9,801.69 = 4,451.72 : x
  2. Step 2: Convert to fraction form
    7,102.85/9,801.69 = 4,451.72/x
  3. Step 3: Cross multiply
    7,102.85x = 9,801.69 × 4,451.72
  4. Step 4: Simplify right side
    7,102.85x = 43,634,330.40
  5. Step 5: Solve for x
    x = 43,634,330.40/7,102.85
  6. Step 6: Final answer
    x = 6,143.22

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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.