Home / 2,965.40-4,421.20-2,888.46

Finding the Fourth Proportional to 2,965.40, 4,421.20 and 2,888.46

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Solution

The fourth proportional to 2,965.40, 4,421.20 and 2,888.46 is: 4,306.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,965.40 : 4,421.20 = 2,888.46 : x
  2. Step 2: Convert to fraction form
    2,965.40/4,421.20 = 2,888.46/x
  3. Step 3: Cross multiply
    2,965.40x = 4,421.20 × 2,888.46
  4. Step 4: Simplify right side
    2,965.40x = 12,770,459.35
  5. Step 5: Solve for x
    x = 12,770,459.35/2,965.40
  6. Step 6: Final answer
    x = 4,306.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.