Home / 3,159.46-4,360.46-1,815.60

Finding the Fourth Proportional to 3,159.46, 4,360.46 and 1,815.60

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Solution

The fourth proportional to 3,159.46, 4,360.46 and 1,815.60 is: 2,505.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,159.46 : 4,360.46 = 1,815.60 : x
  2. Step 2: Convert to fraction form
    3,159.46/4,360.46 = 1,815.60/x
  3. Step 3: Cross multiply
    3,159.46x = 4,360.46 × 1,815.60
  4. Step 4: Simplify right side
    3,159.46x = 7,916,851.18
  5. Step 5: Solve for x
    x = 7,916,851.18/3,159.46
  6. Step 6: Final answer
    x = 2,505.76

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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.