Home / 3,417.20-4,715.40-2,019.68

Finding the Fourth Proportional to 3,417.20, 4,715.40 and 2,019.68

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Solution

The fourth proportional to 3,417.20, 4,715.40 and 2,019.68 is: 2,786.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,417.20 : 4,715.40 = 2,019.68 : x
  2. Step 2: Convert to fraction form
    3,417.20/4,715.40 = 2,019.68/x
  3. Step 3: Cross multiply
    3,417.20x = 4,715.40 × 2,019.68
  4. Step 4: Simplify right side
    3,417.20x = 9,523,599.07
  5. Step 5: Solve for x
    x = 9,523,599.07/3,417.20
  6. Step 6: Final answer
    x = 2,786.96

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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.