Home / 3,880.26-5,820.48-1,283.40

Finding the Fourth Proportional to 3,880.26, 5,820.48 and 1,283.40

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Solution

The fourth proportional to 3,880.26, 5,820.48 and 1,283.40 is: 1,925.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,880.26 : 5,820.48 = 1,283.40 : x
  2. Step 2: Convert to fraction form
    3,880.26/5,820.48 = 1,283.40/x
  3. Step 3: Cross multiply
    3,880.26x = 5,820.48 × 1,283.40
  4. Step 4: Simplify right side
    3,880.26x = 7,470,004.03
  5. Step 5: Solve for x
    x = 7,470,004.03/3,880.26
  6. Step 6: Final answer
    x = 1,925.13

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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.