Home / 3,880.02-5,816.36-1,281.54

Finding the Fourth Proportional to 3,880.02, 5,816.36 and 1,281.54

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Solution

The fourth proportional to 3,880.02, 5,816.36 and 1,281.54 is: 1,921.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,880.02 : 5,816.36 = 1,281.54 : x
  2. Step 2: Convert to fraction form
    3,880.02/5,816.36 = 1,281.54/x
  3. Step 3: Cross multiply
    3,880.02x = 5,816.36 × 1,281.54
  4. Step 4: Simplify right side
    3,880.02x = 7,453,897.99
  5. Step 5: Solve for x
    x = 7,453,897.99/3,880.02
  6. Step 6: Final answer
    x = 1,921.10

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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.