Home / 2,985.93-4,472.30-1,871.72

Finding the Fourth Proportional to 2,985.93, 4,472.30 and 1,871.72

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Solution

The fourth proportional to 2,985.93, 4,472.30 and 1,871.72 is: 2,803.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,985.93 : 4,472.30 = 1,871.72 : x
  2. Step 2: Convert to fraction form
    2,985.93/4,472.30 = 1,871.72/x
  3. Step 3: Cross multiply
    2,985.93x = 4,472.30 × 1,871.72
  4. Step 4: Simplify right side
    2,985.93x = 8,370,861.64
  5. Step 5: Solve for x
    x = 8,370,861.64/2,985.93
  6. Step 6: Final answer
    x = 2,803.44

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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.