Home / 5,620.10-8,428.61-1,671.35

Finding the Fourth Proportional to 5,620.10, 8,428.61 and 1,671.35

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Solution

The fourth proportional to 5,620.10, 8,428.61 and 1,671.35 is: 2,506.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620.10 : 8,428.61 = 1,671.35 : x
  2. Step 2: Convert to fraction form
    5,620.10/8,428.61 = 1,671.35/x
  3. Step 3: Cross multiply
    5,620.10x = 8,428.61 × 1,671.35
  4. Step 4: Simplify right side
    5,620.10x = 14,087,106.82
  5. Step 5: Solve for x
    x = 14,087,106.82/5,620.10
  6. Step 6: Final answer
    x = 2,506.56

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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.