Home / 3,047.08-4,205.04-1,720.66

Finding the Fourth Proportional to 3,047.08, 4,205.04 and 1,720.66

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Solution

The fourth proportional to 3,047.08, 4,205.04 and 1,720.66 is: 2,374.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,047.08 : 4,205.04 = 1,720.66 : x
  2. Step 2: Convert to fraction form
    3,047.08/4,205.04 = 1,720.66/x
  3. Step 3: Cross multiply
    3,047.08x = 4,205.04 × 1,720.66
  4. Step 4: Simplify right side
    3,047.08x = 7,235,444.13
  5. Step 5: Solve for x
    x = 7,235,444.13/3,047.08
  6. Step 6: Final answer
    x = 2,374.55

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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.