Home / 2,339.12-3,228.33-1,455.20

Finding the Fourth Proportional to 2,339.12, 3,228.33 and 1,455.20

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Solution

The fourth proportional to 2,339.12, 3,228.33 and 1,455.20 is: 2,008.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,339.12 : 3,228.33 = 1,455.20 : x
  2. Step 2: Convert to fraction form
    2,339.12/3,228.33 = 1,455.20/x
  3. Step 3: Cross multiply
    2,339.12x = 3,228.33 × 1,455.20
  4. Step 4: Simplify right side
    2,339.12x = 4,697,865.82
  5. Step 5: Solve for x
    x = 4,697,865.82/2,339.12
  6. Step 6: Final answer
    x = 2,008.39

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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.