Home / 7,639.91-10,543.46-4,283.07

Finding the Fourth Proportional to 7,639.91, 10,543.46 and 4,283.07

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Solution

The fourth proportional to 7,639.91, 10,543.46 and 4,283.07 is: 5,910.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639.91 : 10,543.46 = 4,283.07 : x
  2. Step 2: Convert to fraction form
    7,639.91/10,543.46 = 4,283.07/x
  3. Step 3: Cross multiply
    7,639.91x = 10,543.46 × 4,283.07
  4. Step 4: Simplify right side
    7,639.91x = 45,158,377.22
  5. Step 5: Solve for x
    x = 45,158,377.22/7,639.91
  6. Step 6: Final answer
    x = 5,910.85

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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.