Home / 7,088.72-9,779.74-4,103.06

Finding the Fourth Proportional to 7,088.72, 9,779.74 and 4,103.06

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Solution

The fourth proportional to 7,088.72, 9,779.74 and 4,103.06 is: 5,660.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,088.72 : 9,779.74 = 4,103.06 : x
  2. Step 2: Convert to fraction form
    7,088.72/9,779.74 = 4,103.06/x
  3. Step 3: Cross multiply
    7,088.72x = 9,779.74 × 4,103.06
  4. Step 4: Simplify right side
    7,088.72x = 40,126,800.85
  5. Step 5: Solve for x
    x = 40,126,800.85/7,088.72
  6. Step 6: Final answer
    x = 5,660.66

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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.