Home / 2,030.28-3,046.60-860.20

Finding the Fourth Proportional to 2,030.28, 3,046.60 and 860.20

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Solution

The fourth proportional to 2,030.28, 3,046.60 and 860.20 is: 1,290.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,030.28 : 3,046.60 = 860.20 : x
  2. Step 2: Convert to fraction form
    2,030.28/3,046.60 = 860.20/x
  3. Step 3: Cross multiply
    2,030.28x = 3,046.60 × 860.20
  4. Step 4: Simplify right side
    2,030.28x = 2,620,685.32
  5. Step 5: Solve for x
    x = 2,620,685.32/2,030.28
  6. Step 6: Final answer
    x = 1,290.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.