Home / 3,710.79-5,125.89-2,970.05

Finding the Fourth Proportional to 3,710.79, 5,125.89 and 2,970.05

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Solution

The fourth proportional to 3,710.79, 5,125.89 and 2,970.05 is: 4,102.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,710.79 : 5,125.89 = 2,970.05 : x
  2. Step 2: Convert to fraction form
    3,710.79/5,125.89 = 2,970.05/x
  3. Step 3: Cross multiply
    3,710.79x = 5,125.89 × 2,970.05
  4. Step 4: Simplify right side
    3,710.79x = 15,224,123.97
  5. Step 5: Solve for x
    x = 15,224,123.97/3,710.79
  6. Step 6: Final answer
    x = 4,102.66

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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.