Home / 5,260.46-7,890.70-1,562.72

Finding the Fourth Proportional to 5,260.46, 7,890.70 and 1,562.72

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Solution

The fourth proportional to 5,260.46, 7,890.70 and 1,562.72 is: 2,344.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,260.46 : 7,890.70 = 1,562.72 : x
  2. Step 2: Convert to fraction form
    5,260.46/7,890.70 = 1,562.72/x
  3. Step 3: Cross multiply
    5,260.46x = 7,890.70 × 1,562.72
  4. Step 4: Simplify right side
    5,260.46x = 12,330,943.06
  5. Step 5: Solve for x
    x = 12,330,943.06/5,260.46
  6. Step 6: Final answer
    x = 2,344.08

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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.