Home / 6,421.50-8,861.56-3,588.92

Finding the Fourth Proportional to 6,421.50, 8,861.56 and 3,588.92

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Solution

The fourth proportional to 6,421.50, 8,861.56 and 3,588.92 is: 4,952.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,421.50 : 8,861.56 = 3,588.92 : x
  2. Step 2: Convert to fraction form
    6,421.50/8,861.56 = 3,588.92/x
  3. Step 3: Cross multiply
    6,421.50x = 8,861.56 × 3,588.92
  4. Step 4: Simplify right side
    6,421.50x = 31,803,429.92
  5. Step 5: Solve for x
    x = 31,803,429.92/6,421.50
  6. Step 6: Final answer
    x = 4,952.65

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1.5x scale

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.