Home / 7,042.47-9,721.44-4,620.93

Finding the Fourth Proportional to 7,042.47, 9,721.44 and 4,620.93

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Solution

The fourth proportional to 7,042.47, 9,721.44 and 4,620.93 is: 6,378.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,042.47 : 9,721.44 = 4,620.93 : x
  2. Step 2: Convert to fraction form
    7,042.47/9,721.44 = 4,620.93/x
  3. Step 3: Cross multiply
    7,042.47x = 9,721.44 × 4,620.93
  4. Step 4: Simplify right side
    7,042.47x = 44,922,093.74
  5. Step 5: Solve for x
    x = 44,922,093.74/7,042.47
  6. Step 6: Final answer
    x = 6,378.74

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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.