Home / 3,045.90-4,204.10-1,720.39

Finding the Fourth Proportional to 3,045.90, 4,204.10 and 1,720.39

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Solution

The fourth proportional to 3,045.90, 4,204.10 and 1,720.39 is: 2,374.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,045.90 : 4,204.10 = 1,720.39 : x
  2. Step 2: Convert to fraction form
    3,045.90/4,204.10 = 1,720.39/x
  3. Step 3: Cross multiply
    3,045.90x = 4,204.10 × 1,720.39
  4. Step 4: Simplify right side
    3,045.90x = 7,232,693.27
  5. Step 5: Solve for x
    x = 7,232,693.27/3,045.90
  6. Step 6: Final answer
    x = 2,374.56

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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.