Home / 2,421.69-3,343.91-1,973.63

Finding the Fourth Proportional to 2,421.69, 3,343.91 and 1,973.63

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Solution

The fourth proportional to 2,421.69, 3,343.91 and 1,973.63 is: 2,725.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,421.69 : 3,343.91 = 1,973.63 : x
  2. Step 2: Convert to fraction form
    2,421.69/3,343.91 = 1,973.63/x
  3. Step 3: Cross multiply
    2,421.69x = 3,343.91 × 1,973.63
  4. Step 4: Simplify right side
    2,421.69x = 6,599,614.51
  5. Step 5: Solve for x
    x = 6,599,614.51/2,421.69
  6. Step 6: Final answer
    x = 2,725.21

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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.