Home / 10,779.48-16,169.16-2,988.28

Finding the Fourth Proportional to 10,779.48, 16,169.16 and 2,988.28

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Solution

The fourth proportional to 10,779.48, 16,169.16 and 2,988.28 is: 4,482.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,779.48 : 16,169.16 = 2,988.28 : x
  2. Step 2: Convert to fraction form
    10,779.48/16,169.16 = 2,988.28/x
  3. Step 3: Cross multiply
    10,779.48x = 16,169.16 × 2,988.28
  4. Step 4: Simplify right side
    10,779.48x = 48,317,977.44
  5. Step 5: Solve for x
    x = 48,317,977.44/10,779.48
  6. Step 6: Final answer
    x = 4,482.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.