Home / 7,828.65-10,803.80-4,291.86

Finding the Fourth Proportional to 7,828.65, 10,803.80 and 4,291.86

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Solution

The fourth proportional to 7,828.65, 10,803.80 and 4,291.86 is: 5,922.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,828.65 : 10,803.80 = 4,291.86 : x
  2. Step 2: Convert to fraction form
    7,828.65/10,803.80 = 4,291.86/x
  3. Step 3: Cross multiply
    7,828.65x = 10,803.80 × 4,291.86
  4. Step 4: Simplify right side
    7,828.65x = 46,368,397.07
  5. Step 5: Solve for x
    x = 46,368,397.07/7,828.65
  6. Step 6: Final answer
    x = 5,922.91

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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.