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Finding the Fourth Proportional to 2,574.66, 3,553.02 and 1,395.70

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Solution

The fourth proportional to 2,574.66, 3,553.02 and 1,395.70 is: 1,926.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,574.66 : 3,553.02 = 1,395.70 : x
  2. Step 2: Convert to fraction form
    2,574.66/3,553.02 = 1,395.70/x
  3. Step 3: Cross multiply
    2,574.66x = 3,553.02 × 1,395.70
  4. Step 4: Simplify right side
    2,574.66x = 4,958,950.01
  5. Step 5: Solve for x
    x = 4,958,950.01/2,574.66
  6. Step 6: Final answer
    x = 1,926.06

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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.