Home / 2,655.21-3,983.63-1,357.59

Finding the Fourth Proportional to 2,655.21, 3,983.63 and 1,357.59

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Solution

The fourth proportional to 2,655.21, 3,983.63 and 1,357.59 is: 2,036.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,655.21 : 3,983.63 = 1,357.59 : x
  2. Step 2: Convert to fraction form
    2,655.21/3,983.63 = 1,357.59/x
  3. Step 3: Cross multiply
    2,655.21x = 3,983.63 × 1,357.59
  4. Step 4: Simplify right side
    2,655.21x = 5,408,129.46
  5. Step 5: Solve for x
    x = 5,408,129.46/2,655.21
  6. Step 6: Final answer
    x = 2,036.80

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1.5x scale

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.