Home / 5,535.09-7,638.12-3,145.01

Finding the Fourth Proportional to 5,535.09, 7,638.12 and 3,145.01

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Solution

The fourth proportional to 5,535.09, 7,638.12 and 3,145.01 is: 4,339.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,535.09 : 7,638.12 = 3,145.01 : x
  2. Step 2: Convert to fraction form
    5,535.09/7,638.12 = 3,145.01/x
  3. Step 3: Cross multiply
    5,535.09x = 7,638.12 × 3,145.01
  4. Step 4: Simplify right side
    5,535.09x = 24,021,925.59
  5. Step 5: Solve for x
    x = 24,021,925.59/5,535.09
  6. Step 6: Final answer
    x = 4,339.93

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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.