Home / 6,415.12-9,622.68-1,798.12

Finding the Fourth Proportional to 6,415.12, 9,622.68 and 1,798.12

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Solution

The fourth proportional to 6,415.12, 9,622.68 and 1,798.12 is: 2,697.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,415.12 : 9,622.68 = 1,798.12 : x
  2. Step 2: Convert to fraction form
    6,415.12/9,622.68 = 1,798.12/x
  3. Step 3: Cross multiply
    6,415.12x = 9,622.68 × 1,798.12
  4. Step 4: Simplify right side
    6,415.12x = 17,302,733.36
  5. Step 5: Solve for x
    x = 17,302,733.36/6,415.12
  6. Step 6: Final answer
    x = 2,697.18

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Half scale
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Double scale
Find fourth proportional to 6,416.12, 9,624.18 and 1,799.12
Similar ratio
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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.