Home / 2,983.12-4,475.20-1,134.40

Finding the Fourth Proportional to 2,983.12, 4,475.20 and 1,134.40

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Solution

The fourth proportional to 2,983.12, 4,475.20 and 1,134.40 is: 1,701.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,983.12 : 4,475.20 = 1,134.40 : x
  2. Step 2: Convert to fraction form
    2,983.12/4,475.20 = 1,134.40/x
  3. Step 3: Cross multiply
    2,983.12x = 4,475.20 × 1,134.40
  4. Step 4: Simplify right side
    2,983.12x = 5,076,666.88
  5. Step 5: Solve for x
    x = 5,076,666.88/2,983.12
  6. Step 6: Final answer
    x = 1,701.80

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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.