Home / 2,330.39-3,216.62-1,386.84

Finding the Fourth Proportional to 2,330.39, 3,216.62 and 1,386.84

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Solution

The fourth proportional to 2,330.39, 3,216.62 and 1,386.84 is: 1,914.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,330.39 : 3,216.62 = 1,386.84 : x
  2. Step 2: Convert to fraction form
    2,330.39/3,216.62 = 1,386.84/x
  3. Step 3: Cross multiply
    2,330.39x = 3,216.62 × 1,386.84
  4. Step 4: Simplify right side
    2,330.39x = 4,460,937.28
  5. Step 5: Solve for x
    x = 4,460,937.28/2,330.39
  6. Step 6: Final answer
    x = 1,914.24

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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.