Home / 2,421.39-3,632.63-1,325.19

Finding the Fourth Proportional to 2,421.39, 3,632.63 and 1,325.19

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Solution

The fourth proportional to 2,421.39, 3,632.63 and 1,325.19 is: 1,988.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,421.39 : 3,632.63 = 1,325.19 : x
  2. Step 2: Convert to fraction form
    2,421.39/3,632.63 = 1,325.19/x
  3. Step 3: Cross multiply
    2,421.39x = 3,632.63 × 1,325.19
  4. Step 4: Simplify right side
    2,421.39x = 4,813,924.95
  5. Step 5: Solve for x
    x = 4,813,924.95/2,421.39
  6. Step 6: Final answer
    x = 1,988.08

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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.