Home / 4,272.55-6,409.95-2,814.55

Finding the Fourth Proportional to 4,272.55, 6,409.95 and 2,814.55

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Solution

The fourth proportional to 4,272.55, 6,409.95 and 2,814.55 is: 4,222.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,272.55 : 6,409.95 = 2,814.55 : x
  2. Step 2: Convert to fraction form
    4,272.55/6,409.95 = 2,814.55/x
  3. Step 3: Cross multiply
    4,272.55x = 6,409.95 × 2,814.55
  4. Step 4: Simplify right side
    4,272.55x = 18,041,124.77
  5. Step 5: Solve for x
    x = 18,041,124.77/4,272.55
  6. Step 6: Final answer
    x = 4,222.57

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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.