Home / 2,710-3,742.30-2,178.98

Finding the Fourth Proportional to 2,710, 3,742.30 and 2,178.98

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Solution

The fourth proportional to 2,710, 3,742.30 and 2,178.98 is: 3,009.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,710 : 3,742.30 = 2,178.98 : x
  2. Step 2: Convert to fraction form
    2,710/3,742.30 = 2,178.98/x
  3. Step 3: Cross multiply
    2,710x = 3,742.30 × 2,178.98
  4. Step 4: Simplify right side
    2,710x = 8,154,396.85
  5. Step 5: Solve for x
    x = 8,154,396.85/2,710
  6. Step 6: Final answer
    x = 3,009.00

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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.