Home / 2,719.40-4,087.80-2,526.80

Finding the Fourth Proportional to 2,719.40, 4,087.80 and 2,526.80

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Solution

The fourth proportional to 2,719.40, 4,087.80 and 2,526.80 is: 3,798.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,719.40 : 4,087.80 = 2,526.80 : x
  2. Step 2: Convert to fraction form
    2,719.40/4,087.80 = 2,526.80/x
  3. Step 3: Cross multiply
    2,719.40x = 4,087.80 × 2,526.80
  4. Step 4: Simplify right side
    2,719.40x = 10,329,053.04
  5. Step 5: Solve for x
    x = 10,329,053.04/2,719.40
  6. Step 6: Final answer
    x = 3,798.28

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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.