Home / 2,628.65-3,627.80-1,964.35

Finding the Fourth Proportional to 2,628.65, 3,627.80 and 1,964.35

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Solution

The fourth proportional to 2,628.65, 3,627.80 and 1,964.35 is: 2,711.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628.65 : 3,627.80 = 1,964.35 : x
  2. Step 2: Convert to fraction form
    2,628.65/3,627.80 = 1,964.35/x
  3. Step 3: Cross multiply
    2,628.65x = 3,627.80 × 1,964.35
  4. Step 4: Simplify right side
    2,628.65x = 7,126,259.11
  5. Step 5: Solve for x
    x = 7,126,259.11/2,628.65
  6. Step 6: Final answer
    x = 2,711.00

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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.