Home / 2,970.28-4,097.46-1,790.92

Finding the Fourth Proportional to 2,970.28, 4,097.46 and 1,790.92

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Solution

The fourth proportional to 2,970.28, 4,097.46 and 1,790.92 is: 2,470.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,970.28 : 4,097.46 = 1,790.92 : x
  2. Step 2: Convert to fraction form
    2,970.28/4,097.46 = 1,790.92/x
  3. Step 3: Cross multiply
    2,970.28x = 4,097.46 × 1,790.92
  4. Step 4: Simplify right side
    2,970.28x = 7,338,223.06
  5. Step 5: Solve for x
    x = 7,338,223.06/2,970.28
  6. Step 6: Final answer
    x = 2,470.55

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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.