Home / 2,957.10-4,080.74-1,698.15

Finding the Fourth Proportional to 2,957.10, 4,080.74 and 1,698.15

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Solution

The fourth proportional to 2,957.10, 4,080.74 and 1,698.15 is: 2,343.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,957.10 : 4,080.74 = 1,698.15 : x
  2. Step 2: Convert to fraction form
    2,957.10/4,080.74 = 1,698.15/x
  3. Step 3: Cross multiply
    2,957.10x = 4,080.74 × 1,698.15
  4. Step 4: Simplify right side
    2,957.10x = 6,929,708.63
  5. Step 5: Solve for x
    x = 6,929,708.63/2,957.10
  6. Step 6: Final answer
    x = 2,343.41

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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.