Home / 2,103.13-2,900.64-1,438.93

Finding the Fourth Proportional to 2,103.13, 2,900.64 and 1,438.93

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Solution

The fourth proportional to 2,103.13, 2,900.64 and 1,438.93 is: 1,984.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,103.13 : 2,900.64 = 1,438.93 : x
  2. Step 2: Convert to fraction form
    2,103.13/2,900.64 = 1,438.93/x
  3. Step 3: Cross multiply
    2,103.13x = 2,900.64 × 1,438.93
  4. Step 4: Simplify right side
    2,103.13x = 4,173,817.92
  5. Step 5: Solve for x
    x = 4,173,817.92/2,103.13
  6. Step 6: Final answer
    x = 1,984.57

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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.