Home / 2,120.94-2,929.46-1,560.60

Finding the Fourth Proportional to 2,120.94, 2,929.46 and 1,560.60

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Solution

The fourth proportional to 2,120.94, 2,929.46 and 1,560.60 is: 2,155.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120.94 : 2,929.46 = 1,560.60 : x
  2. Step 2: Convert to fraction form
    2,120.94/2,929.46 = 1,560.60/x
  3. Step 3: Cross multiply
    2,120.94x = 2,929.46 × 1,560.60
  4. Step 4: Simplify right side
    2,120.94x = 4,571,707.47
  5. Step 5: Solve for x
    x = 4,571,707.47/2,120.94
  6. Step 6: Final answer
    x = 2,155.51

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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.