Home / 7,089.12-9,779.13-4,435.97

Finding the Fourth Proportional to 7,089.12, 9,779.13 and 4,435.97

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Solution

The fourth proportional to 7,089.12, 9,779.13 and 4,435.97 is: 6,119.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,089.12 : 9,779.13 = 4,435.97 : x
  2. Step 2: Convert to fraction form
    7,089.12/9,779.13 = 4,435.97/x
  3. Step 3: Cross multiply
    7,089.12x = 9,779.13 × 4,435.97
  4. Step 4: Simplify right side
    7,089.12x = 43,379,878.41
  5. Step 5: Solve for x
    x = 43,379,878.41/7,089.12
  6. Step 6: Final answer
    x = 6,119.22

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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.