Home / 2,807.36-3,868.32-2,386.24

Finding the Fourth Proportional to 2,807.36, 3,868.32 and 2,386.24

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Solution

The fourth proportional to 2,807.36, 3,868.32 and 2,386.24 is: 3,288.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,807.36 : 3,868.32 = 2,386.24 : x
  2. Step 2: Convert to fraction form
    2,807.36/3,868.32 = 2,386.24/x
  3. Step 3: Cross multiply
    2,807.36x = 3,868.32 × 2,386.24
  4. Step 4: Simplify right side
    2,807.36x = 9,230,739.92
  5. Step 5: Solve for x
    x = 9,230,739.92/2,807.36
  6. Step 6: Final answer
    x = 3,288.05

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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.