Home / 3,310.60-4,567.08-2,117.20

Finding the Fourth Proportional to 3,310.60, 4,567.08 and 2,117.20

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Solution

The fourth proportional to 3,310.60, 4,567.08 and 2,117.20 is: 2,920.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,310.60 : 4,567.08 = 2,117.20 : x
  2. Step 2: Convert to fraction form
    3,310.60/4,567.08 = 2,117.20/x
  3. Step 3: Cross multiply
    3,310.60x = 4,567.08 × 2,117.20
  4. Step 4: Simplify right side
    3,310.60x = 9,669,421.78
  5. Step 5: Solve for x
    x = 9,669,421.78/3,310.60
  6. Step 6: Final answer
    x = 2,920.75

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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.