Home / 3,989.84-5,985.76-2,347.76

Finding the Fourth Proportional to 3,989.84, 5,985.76 and 2,347.76

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Solution

The fourth proportional to 3,989.84, 5,985.76 and 2,347.76 is: 3,522.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,989.84 : 5,985.76 = 2,347.76 : x
  2. Step 2: Convert to fraction form
    3,989.84/5,985.76 = 2,347.76/x
  3. Step 3: Cross multiply
    3,989.84x = 5,985.76 × 2,347.76
  4. Step 4: Simplify right side
    3,989.84x = 14,053,127.90
  5. Step 5: Solve for x
    x = 14,053,127.90/3,989.84
  6. Step 6: Final answer
    x = 3,522.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.