Home / 7,810.22-10,776.40-4,452.12

Finding the Fourth Proportional to 7,810.22, 10,776.40 and 4,452.12

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Solution

The fourth proportional to 7,810.22, 10,776.40 and 4,452.12 is: 6,142.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,810.22 : 10,776.40 = 4,452.12 : x
  2. Step 2: Convert to fraction form
    7,810.22/10,776.40 = 4,452.12/x
  3. Step 3: Cross multiply
    7,810.22x = 10,776.40 × 4,452.12
  4. Step 4: Simplify right side
    7,810.22x = 47,977,814.84
  5. Step 5: Solve for x
    x = 47,977,814.84/7,810.22
  6. Step 6: Final answer
    x = 6,142.95

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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.