Home / 5,106.16-7,047.26-3,117.87

Finding the Fourth Proportional to 5,106.16, 7,047.26 and 3,117.87

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Solution

The fourth proportional to 5,106.16, 7,047.26 and 3,117.87 is: 4,303.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,106.16 : 7,047.26 = 3,117.87 : x
  2. Step 2: Convert to fraction form
    5,106.16/7,047.26 = 3,117.87/x
  3. Step 3: Cross multiply
    5,106.16x = 7,047.26 × 3,117.87
  4. Step 4: Simplify right side
    5,106.16x = 21,972,454.18
  5. Step 5: Solve for x
    x = 21,972,454.18/5,106.16
  6. Step 6: Final answer
    x = 4,303.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.