Home / 3,047.30-4,205.36-1,720.93

Finding the Fourth Proportional to 3,047.30, 4,205.36 and 1,720.93

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Solution

The fourth proportional to 3,047.30, 4,205.36 and 1,720.93 is: 2,374.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,047.30 : 4,205.36 = 1,720.93 : x
  2. Step 2: Convert to fraction form
    3,047.30/4,205.36 = 1,720.93/x
  3. Step 3: Cross multiply
    3,047.30x = 4,205.36 × 1,720.93
  4. Step 4: Simplify right side
    3,047.30x = 7,237,130.18
  5. Step 5: Solve for x
    x = 7,237,130.18/3,047.30
  6. Step 6: Final answer
    x = 2,374.93

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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.