Home / 2,983.40-4,475.10-1,671.20

Finding the Fourth Proportional to 2,983.40, 4,475.10 and 1,671.20

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Solution

The fourth proportional to 2,983.40, 4,475.10 and 1,671.20 is: 2,506.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,983.40 : 4,475.10 = 1,671.20 : x
  2. Step 2: Convert to fraction form
    2,983.40/4,475.10 = 1,671.20/x
  3. Step 3: Cross multiply
    2,983.40x = 4,475.10 × 1,671.20
  4. Step 4: Simplify right side
    2,983.40x = 7,478,787.12
  5. Step 5: Solve for x
    x = 7,478,787.12/2,983.40
  6. Step 6: Final answer
    x = 2,506.80

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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.