Home / 5,155.38-7,733.70-1,870.02

Finding the Fourth Proportional to 5,155.38, 7,733.70 and 1,870.02

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Solution

The fourth proportional to 5,155.38, 7,733.70 and 1,870.02 is: 2,805.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,155.38 : 7,733.70 = 1,870.02 : x
  2. Step 2: Convert to fraction form
    5,155.38/7,733.70 = 1,870.02/x
  3. Step 3: Cross multiply
    5,155.38x = 7,733.70 × 1,870.02
  4. Step 4: Simplify right side
    5,155.38x = 14,462,173.67
  5. Step 5: Solve for x
    x = 14,462,173.67/5,155.38
  6. Step 6: Final answer
    x = 2,805.26

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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.