Home / 1,869.35-2,803.75-482.69

Finding the Fourth Proportional to 1,869.35, 2,803.75 and 482.69

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Solution

The fourth proportional to 1,869.35, 2,803.75 and 482.69 is: 723.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,869.35 : 2,803.75 = 482.69 : x
  2. Step 2: Convert to fraction form
    1,869.35/2,803.75 = 482.69/x
  3. Step 3: Cross multiply
    1,869.35x = 2,803.75 × 482.69
  4. Step 4: Simplify right side
    1,869.35x = 1,353,347.89
  5. Step 5: Solve for x
    x = 1,353,347.89/1,869.35
  6. Step 6: Final answer
    x = 723.97

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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.