Home / 7,810.20-10,776.80-4,453.08

Finding the Fourth Proportional to 7,810.20, 10,776.80 and 4,453.08

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Solution

The fourth proportional to 7,810.20, 10,776.80 and 4,453.08 is: 6,144.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,810.20 : 10,776.80 = 4,453.08 : x
  2. Step 2: Convert to fraction form
    7,810.20/10,776.80 = 4,453.08/x
  3. Step 3: Cross multiply
    7,810.20x = 10,776.80 × 4,453.08
  4. Step 4: Simplify right side
    7,810.20x = 47,989,952.54
  5. Step 5: Solve for x
    x = 47,989,952.54/7,810.20
  6. Step 6: Final answer
    x = 6,144.52

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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.