Home / 2,655.36-3,984.48-1,356.84

Finding the Fourth Proportional to 2,655.36, 3,984.48 and 1,356.84

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Solution

The fourth proportional to 2,655.36, 3,984.48 and 1,356.84 is: 2,036.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,655.36 : 3,984.48 = 1,356.84 : x
  2. Step 2: Convert to fraction form
    2,655.36/3,984.48 = 1,356.84/x
  3. Step 3: Cross multiply
    2,655.36x = 3,984.48 × 1,356.84
  4. Step 4: Simplify right side
    2,655.36x = 5,406,301.84
  5. Step 5: Solve for x
    x = 5,406,301.84/2,655.36
  6. Step 6: Final answer
    x = 2,036.00

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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.