Home / 3,468.16-4,782.40-3,187.28

Finding the Fourth Proportional to 3,468.16, 4,782.40 and 3,187.28

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Solution

The fourth proportional to 3,468.16, 4,782.40 and 3,187.28 is: 4,395.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,468.16 : 4,782.40 = 3,187.28 : x
  2. Step 2: Convert to fraction form
    3,468.16/4,782.40 = 3,187.28/x
  3. Step 3: Cross multiply
    3,468.16x = 4,782.40 × 3,187.28
  4. Step 4: Simplify right side
    3,468.16x = 15,242,847.87
  5. Step 5: Solve for x
    x = 15,242,847.87/3,468.16
  6. Step 6: Final answer
    x = 4,395.08

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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.