Home / 2,637.80-3,956.70-1,668.20

Finding the Fourth Proportional to 2,637.80, 3,956.70 and 1,668.20

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Solution

The fourth proportional to 2,637.80, 3,956.70 and 1,668.20 is: 2,502.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,637.80 : 3,956.70 = 1,668.20 : x
  2. Step 2: Convert to fraction form
    2,637.80/3,956.70 = 1,668.20/x
  3. Step 3: Cross multiply
    2,637.80x = 3,956.70 × 1,668.20
  4. Step 4: Simplify right side
    2,637.80x = 6,600,566.94
  5. Step 5: Solve for x
    x = 6,600,566.94/2,637.80
  6. Step 6: Final answer
    x = 2,502.30

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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.