Home / 3,870.74-5,341.53-2,102.34

Finding the Fourth Proportional to 3,870.74, 5,341.53 and 2,102.34

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Solution

The fourth proportional to 3,870.74, 5,341.53 and 2,102.34 is: 2,901.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,870.74 : 5,341.53 = 2,102.34 : x
  2. Step 2: Convert to fraction form
    3,870.74/5,341.53 = 2,102.34/x
  3. Step 3: Cross multiply
    3,870.74x = 5,341.53 × 2,102.34
  4. Step 4: Simplify right side
    3,870.74x = 11,229,712.18
  5. Step 5: Solve for x
    x = 11,229,712.18/3,870.74
  6. Step 6: Final answer
    x = 2,901.18

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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.