Home / 5,535.16-7,638.66-3,177.40

Finding the Fourth Proportional to 5,535.16, 7,638.66 and 3,177.40

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Solution

The fourth proportional to 5,535.16, 7,638.66 and 3,177.40 is: 4,384.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,535.16 : 7,638.66 = 3,177.40 : x
  2. Step 2: Convert to fraction form
    5,535.16/7,638.66 = 3,177.40/x
  3. Step 3: Cross multiply
    5,535.16x = 7,638.66 × 3,177.40
  4. Step 4: Simplify right side
    5,535.16x = 24,271,078.28
  5. Step 5: Solve for x
    x = 24,271,078.28/5,535.16
  6. Step 6: Final answer
    x = 4,384.89

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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.