Home / 7,780.50-10,730.61-4,634.46

Finding the Fourth Proportional to 7,780.50, 10,730.61 and 4,634.46

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Solution

The fourth proportional to 7,780.50, 10,730.61 and 4,634.46 is: 6,391.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,780.50 : 10,730.61 = 4,634.46 : x
  2. Step 2: Convert to fraction form
    7,780.50/10,730.61 = 4,634.46/x
  3. Step 3: Cross multiply
    7,780.50x = 10,730.61 × 4,634.46
  4. Step 4: Simplify right side
    7,780.50x = 49,730,582.82
  5. Step 5: Solve for x
    x = 49,730,582.82/7,780.50
  6. Step 6: Final answer
    x = 6,391.69

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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.