Home / 3,209.07-4,813.47-1,129.08

Finding the Fourth Proportional to 3,209.07, 4,813.47 and 1,129.08

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Solution

The fourth proportional to 3,209.07, 4,813.47 and 1,129.08 is: 1,693.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209.07 : 4,813.47 = 1,129.08 : x
  2. Step 2: Convert to fraction form
    3,209.07/4,813.47 = 1,129.08/x
  3. Step 3: Cross multiply
    3,209.07x = 4,813.47 × 1,129.08
  4. Step 4: Simplify right side
    3,209.07x = 5,434,792.71
  5. Step 5: Solve for x
    x = 5,434,792.71/3,209.07
  6. Step 6: Final answer
    x = 1,693.57

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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.