Home / 6,421.12-9,631.68-1,804.12

Finding the Fourth Proportional to 6,421.12, 9,631.68 and 1,804.12

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Solution

The fourth proportional to 6,421.12, 9,631.68 and 1,804.12 is: 2,706.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,421.12 : 9,631.68 = 1,804.12 : x
  2. Step 2: Convert to fraction form
    6,421.12/9,631.68 = 1,804.12/x
  3. Step 3: Cross multiply
    6,421.12x = 9,631.68 × 1,804.12
  4. Step 4: Simplify right side
    6,421.12x = 17,376,706.52
  5. Step 5: Solve for x
    x = 17,376,706.52/6,421.12
  6. Step 6: Final answer
    x = 2,706.18

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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.