Home / 5,419.02-7,477.26-3,180.99

Finding the Fourth Proportional to 5,419.02, 7,477.26 and 3,180.99

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Solution

The fourth proportional to 5,419.02, 7,477.26 and 3,180.99 is: 4,389.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419.02 : 7,477.26 = 3,180.99 : x
  2. Step 2: Convert to fraction form
    5,419.02/7,477.26 = 3,180.99/x
  3. Step 3: Cross multiply
    5,419.02x = 7,477.26 × 3,180.99
  4. Step 4: Simplify right side
    5,419.02x = 23,785,089.29
  5. Step 5: Solve for x
    x = 23,785,089.29/5,419.02
  6. Step 6: Final answer
    x = 4,389.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.