Home / 2,985.18-4,119.48-1,658.88

Finding the Fourth Proportional to 2,985.18, 4,119.48 and 1,658.88

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Solution

The fourth proportional to 2,985.18, 4,119.48 and 1,658.88 is: 2,289.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,985.18 : 4,119.48 = 1,658.88 : x
  2. Step 2: Convert to fraction form
    2,985.18/4,119.48 = 1,658.88/x
  3. Step 3: Cross multiply
    2,985.18x = 4,119.48 × 1,658.88
  4. Step 4: Simplify right side
    2,985.18x = 6,833,722.98
  5. Step 5: Solve for x
    x = 6,833,722.98/2,985.18
  6. Step 6: Final answer
    x = 2,289.22

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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.