Home / 3,217.18-4,439.02-2,421.34

Finding the Fourth Proportional to 3,217.18, 4,439.02 and 2,421.34

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Solution

The fourth proportional to 3,217.18, 4,439.02 and 2,421.34 is: 3,340.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,217.18 : 4,439.02 = 2,421.34 : x
  2. Step 2: Convert to fraction form
    3,217.18/4,439.02 = 2,421.34/x
  3. Step 3: Cross multiply
    3,217.18x = 4,439.02 × 2,421.34
  4. Step 4: Simplify right side
    3,217.18x = 10,748,376.69
  5. Step 5: Solve for x
    x = 10,748,376.69/3,217.18
  6. Step 6: Final answer
    x = 3,340.93

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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.