Home / 7,812.08-10,780.52-4,275.26

Finding the Fourth Proportional to 7,812.08, 10,780.52 and 4,275.26

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Solution

The fourth proportional to 7,812.08, 10,780.52 and 4,275.26 is: 5,899.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,812.08 : 10,780.52 = 4,275.26 : x
  2. Step 2: Convert to fraction form
    7,812.08/10,780.52 = 4,275.26/x
  3. Step 3: Cross multiply
    7,812.08x = 10,780.52 × 4,275.26
  4. Step 4: Simplify right side
    7,812.08x = 46,089,525.94
  5. Step 5: Solve for x
    x = 46,089,525.94/7,812.08
  6. Step 6: Final answer
    x = 5,899.78

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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.