Home / 10,768.40-16,153.52-2,977.20

Finding the Fourth Proportional to 10,768.40, 16,153.52 and 2,977.20

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Solution

The fourth proportional to 10,768.40, 16,153.52 and 2,977.20 is: 4,466.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,768.40 : 16,153.52 = 2,977.20 : x
  2. Step 2: Convert to fraction form
    10,768.40/16,153.52 = 2,977.20/x
  3. Step 3: Cross multiply
    10,768.40x = 16,153.52 × 2,977.20
  4. Step 4: Simplify right side
    10,768.40x = 48,092,259.74
  5. Step 5: Solve for x
    x = 48,092,259.74/10,768.40
  6. Step 6: Final answer
    x = 4,466.05

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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.