Home / 2,491.24-3,437.87-1,429.20

Finding the Fourth Proportional to 2,491.24, 3,437.87 and 1,429.20

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Solution

The fourth proportional to 2,491.24, 3,437.87 and 1,429.20 is: 1,972.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,491.24 : 3,437.87 = 1,429.20 : x
  2. Step 2: Convert to fraction form
    2,491.24/3,437.87 = 1,429.20/x
  3. Step 3: Cross multiply
    2,491.24x = 3,437.87 × 1,429.20
  4. Step 4: Simplify right side
    2,491.24x = 4,913,403.80
  5. Step 5: Solve for x
    x = 4,913,403.80/2,491.24
  6. Step 6: Final answer
    x = 1,972.27

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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.