Home / 7,845.80-10,826.40-4,489.46

Finding the Fourth Proportional to 7,845.80, 10,826.40 and 4,489.46

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Solution

The fourth proportional to 7,845.80, 10,826.40 and 4,489.46 is: 6,194.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,845.80 : 10,826.40 = 4,489.46 : x
  2. Step 2: Convert to fraction form
    7,845.80/10,826.40 = 4,489.46/x
  3. Step 3: Cross multiply
    7,845.80x = 10,826.40 × 4,489.46
  4. Step 4: Simplify right side
    7,845.80x = 48,604,689.74
  5. Step 5: Solve for x
    x = 48,604,689.74/7,845.80
  6. Step 6: Final answer
    x = 6,194.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.