Home / 2,955.30-4,428.15-2,465.70

Finding the Fourth Proportional to 2,955.30, 4,428.15 and 2,465.70

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Solution

The fourth proportional to 2,955.30, 4,428.15 and 2,465.70 is: 3,694.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955.30 : 4,428.15 = 2,465.70 : x
  2. Step 2: Convert to fraction form
    2,955.30/4,428.15 = 2,465.70/x
  3. Step 3: Cross multiply
    2,955.30x = 4,428.15 × 2,465.70
  4. Step 4: Simplify right side
    2,955.30x = 10,918,489.46
  5. Step 5: Solve for x
    x = 10,918,489.46/2,955.30
  6. Step 6: Final answer
    x = 3,694.55

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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.