Home / 3,421.35-4,721.47-1,849.45

Finding the Fourth Proportional to 3,421.35, 4,721.47 and 1,849.45

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Solution

The fourth proportional to 3,421.35, 4,721.47 and 1,849.45 is: 2,552.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.35 : 4,721.47 = 1,849.45 : x
  2. Step 2: Convert to fraction form
    3,421.35/4,721.47 = 1,849.45/x
  3. Step 3: Cross multiply
    3,421.35x = 4,721.47 × 1,849.45
  4. Step 4: Simplify right side
    3,421.35x = 8,732,089.84
  5. Step 5: Solve for x
    x = 8,732,089.84/3,421.35
  6. Step 6: Final answer
    x = 2,552.24

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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.