Home / 2,339.68-3,228.63-1,455.47

Finding the Fourth Proportional to 2,339.68, 3,228.63 and 1,455.47

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Solution

The fourth proportional to 2,339.68, 3,228.63 and 1,455.47 is: 2,008.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,339.68 : 3,228.63 = 1,455.47 : x
  2. Step 2: Convert to fraction form
    2,339.68/3,228.63 = 1,455.47/x
  3. Step 3: Cross multiply
    2,339.68x = 3,228.63 × 1,455.47
  4. Step 4: Simplify right side
    2,339.68x = 4,699,176.72
  5. Step 5: Solve for x
    x = 4,699,176.72/2,339.68
  6. Step 6: Final answer
    x = 2,008.47

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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.