Home / 5,102.79-7,041.80-3,113.02

Finding the Fourth Proportional to 5,102.79, 7,041.80 and 3,113.02

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Solution

The fourth proportional to 5,102.79, 7,041.80 and 3,113.02 is: 4,295.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,102.79 : 7,041.80 = 3,113.02 : x
  2. Step 2: Convert to fraction form
    5,102.79/7,041.80 = 3,113.02/x
  3. Step 3: Cross multiply
    5,102.79x = 7,041.80 × 3,113.02
  4. Step 4: Simplify right side
    5,102.79x = 21,921,264.24
  5. Step 5: Solve for x
    x = 21,921,264.24/5,102.79
  6. Step 6: Final answer
    x = 4,295.94

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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.