Home / 2,421.54-3,339.84-1,624.61

Finding the Fourth Proportional to 2,421.54, 3,339.84 and 1,624.61

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Solution

The fourth proportional to 2,421.54, 3,339.84 and 1,624.61 is: 2,240.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,421.54 : 3,339.84 = 1,624.61 : x
  2. Step 2: Convert to fraction form
    2,421.54/3,339.84 = 1,624.61/x
  3. Step 3: Cross multiply
    2,421.54x = 3,339.84 × 1,624.61
  4. Step 4: Simplify right side
    2,421.54x = 5,425,920.76
  5. Step 5: Solve for x
    x = 5,425,920.76/2,421.54
  6. Step 6: Final answer
    x = 2,240.69

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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.