Home / 2,761.48-4,139.10-1,117

Finding the Fourth Proportional to 2,761.48, 4,139.10 and 1,117

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Solution

The fourth proportional to 2,761.48, 4,139.10 and 1,117 is: 1,674.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,761.48 : 4,139.10 = 1,117 : x
  2. Step 2: Convert to fraction form
    2,761.48/4,139.10 = 1,117/x
  3. Step 3: Cross multiply
    2,761.48x = 4,139.10 × 1,117
  4. Step 4: Simplify right side
    2,761.48x = 4,623,374.70
  5. Step 5: Solve for x
    x = 4,623,374.70/2,761.48
  6. Step 6: Final answer
    x = 1,674.24

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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.