Home / 10,779.48-16,166.79-2,988.90

Finding the Fourth Proportional to 10,779.48, 16,166.79 and 2,988.90

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Solution

The fourth proportional to 10,779.48, 16,166.79 and 2,988.90 is: 4,482.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,779.48 : 16,166.79 = 2,988.90 : x
  2. Step 2: Convert to fraction form
    10,779.48/16,166.79 = 2,988.90/x
  3. Step 3: Cross multiply
    10,779.48x = 16,166.79 × 2,988.90
  4. Step 4: Simplify right side
    10,779.48x = 48,320,918.63
  5. Step 5: Solve for x
    x = 48,320,918.63/10,779.48
  6. Step 6: Final answer
    x = 4,482.68

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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.