Home / 7,880.10-11,807.39-3,710.22

Finding the Fourth Proportional to 7,880.10, 11,807.39 and 3,710.22

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Solution

The fourth proportional to 7,880.10, 11,807.39 and 3,710.22 is: 5,559.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,880.10 : 11,807.39 = 3,710.22 : x
  2. Step 2: Convert to fraction form
    7,880.10/11,807.39 = 3,710.22/x
  3. Step 3: Cross multiply
    7,880.10x = 11,807.39 × 3,710.22
  4. Step 4: Simplify right side
    7,880.10x = 43,807,995.97
  5. Step 5: Solve for x
    x = 43,807,995.97/7,880.10
  6. Step 6: Final answer
    x = 5,559.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.