Home / 3,128.04-4,693.32-1,180.40

Finding the Fourth Proportional to 3,128.04, 4,693.32 and 1,180.40

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Solution

The fourth proportional to 3,128.04, 4,693.32 and 1,180.40 is: 1,771.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.04 : 4,693.32 = 1,180.40 : x
  2. Step 2: Convert to fraction form
    3,128.04/4,693.32 = 1,180.40/x
  3. Step 3: Cross multiply
    3,128.04x = 4,693.32 × 1,180.40
  4. Step 4: Simplify right side
    3,128.04x = 5,539,971.46
  5. Step 5: Solve for x
    x = 5,539,971.46/3,128.04
  6. Step 6: Final answer
    x = 1,771.07

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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.