Home / 5,535.16-7,638.23-3,144.81

Finding the Fourth Proportional to 5,535.16, 7,638.23 and 3,144.81

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Solution

The fourth proportional to 5,535.16, 7,638.23 and 3,144.81 is: 4,339.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,535.16 : 7,638.23 = 3,144.81 : x
  2. Step 2: Convert to fraction form
    5,535.16/7,638.23 = 3,144.81/x
  3. Step 3: Cross multiply
    5,535.16x = 7,638.23 × 3,144.81
  4. Step 4: Simplify right side
    5,535.16x = 24,020,809.04
  5. Step 5: Solve for x
    x = 24,020,809.04/5,535.16
  6. Step 6: Final answer
    x = 4,339.68

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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.