Home / 2,378.55-3,569.37-1,283.70

Finding the Fourth Proportional to 2,378.55, 3,569.37 and 1,283.70

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Solution

The fourth proportional to 2,378.55, 3,569.37 and 1,283.70 is: 1,926.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,378.55 : 3,569.37 = 1,283.70 : x
  2. Step 2: Convert to fraction form
    2,378.55/3,569.37 = 1,283.70/x
  3. Step 3: Cross multiply
    2,378.55x = 3,569.37 × 1,283.70
  4. Step 4: Simplify right side
    2,378.55x = 4,582,000.27
  5. Step 5: Solve for x
    x = 4,582,000.27/2,378.55
  6. Step 6: Final answer
    x = 1,926.38

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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.