Home / 4,459.99-6,689.76-2,118.28

Finding the Fourth Proportional to 4,459.99, 6,689.76 and 2,118.28

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Solution

The fourth proportional to 4,459.99, 6,689.76 and 2,118.28 is: 3,177.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,459.99 : 6,689.76 = 2,118.28 : x
  2. Step 2: Convert to fraction form
    4,459.99/6,689.76 = 2,118.28/x
  3. Step 3: Cross multiply
    4,459.99x = 6,689.76 × 2,118.28
  4. Step 4: Simplify right side
    4,459.99x = 14,170,784.81
  5. Step 5: Solve for x
    x = 14,170,784.81/4,459.99
  6. Step 6: Final answer
    x = 3,177.31

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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.