Home / 3,142.19-4,335.89-1,816.32

Finding the Fourth Proportional to 3,142.19, 4,335.89 and 1,816.32

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Solution

The fourth proportional to 3,142.19, 4,335.89 and 1,816.32 is: 2,506.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,142.19 : 4,335.89 = 1,816.32 : x
  2. Step 2: Convert to fraction form
    3,142.19/4,335.89 = 1,816.32/x
  3. Step 3: Cross multiply
    3,142.19x = 4,335.89 × 1,816.32
  4. Step 4: Simplify right side
    3,142.19x = 7,875,342.05
  5. Step 5: Solve for x
    x = 7,875,342.05/3,142.19
  6. Step 6: Final answer
    x = 2,506.33

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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.