Home / 2,421.63-3,633.66-1,124.01

Finding the Fourth Proportional to 2,421.63, 3,633.66 and 1,124.01

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Solution

The fourth proportional to 2,421.63, 3,633.66 and 1,124.01 is: 1,686.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,421.63 : 3,633.66 = 1,124.01 : x
  2. Step 2: Convert to fraction form
    2,421.63/3,633.66 = 1,124.01/x
  3. Step 3: Cross multiply
    2,421.63x = 3,633.66 × 1,124.01
  4. Step 4: Simplify right side
    2,421.63x = 4,084,270.18
  5. Step 5: Solve for x
    x = 4,084,270.18/2,421.63
  6. Step 6: Final answer
    x = 1,686.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.