Home / 3,030.80-4,182.08-1,704.20

Finding the Fourth Proportional to 3,030.80, 4,182.08 and 1,704.20

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Solution

The fourth proportional to 3,030.80, 4,182.08 and 1,704.20 is: 2,351.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,030.80 : 4,182.08 = 1,704.20 : x
  2. Step 2: Convert to fraction form
    3,030.80/4,182.08 = 1,704.20/x
  3. Step 3: Cross multiply
    3,030.80x = 4,182.08 × 1,704.20
  4. Step 4: Simplify right side
    3,030.80x = 7,127,071.30
  5. Step 5: Solve for x
    x = 7,127,071.30/3,030.80
  6. Step 6: Final answer
    x = 2,351.55

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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.