Home / 5,415.61-8,123.44-1,952.86

Finding the Fourth Proportional to 5,415.61, 8,123.44 and 1,952.86

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Solution

The fourth proportional to 5,415.61, 8,123.44 and 1,952.86 is: 2,929.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.61 : 8,123.44 = 1,952.86 : x
  2. Step 2: Convert to fraction form
    5,415.61/8,123.44 = 1,952.86/x
  3. Step 3: Cross multiply
    5,415.61x = 8,123.44 × 1,952.86
  4. Step 4: Simplify right side
    5,415.61x = 15,863,934.74
  5. Step 5: Solve for x
    x = 15,863,934.74/5,415.61
  6. Step 6: Final answer
    x = 2,929.30

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1.5x scale

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.