Home / 2,953.81-4,432.26-1,913.55

Finding the Fourth Proportional to 2,953.81, 4,432.26 and 1,913.55

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Solution

The fourth proportional to 2,953.81, 4,432.26 and 1,913.55 is: 2,871.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,953.81 : 4,432.26 = 1,913.55 : x
  2. Step 2: Convert to fraction form
    2,953.81/4,432.26 = 1,913.55/x
  3. Step 3: Cross multiply
    2,953.81x = 4,432.26 × 1,913.55
  4. Step 4: Simplify right side
    2,953.81x = 8,481,328.96
  5. Step 5: Solve for x
    x = 8,481,328.96/2,953.81
  6. Step 6: Final answer
    x = 2,871.32

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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.