Home / 2,374.20-3,275.91-1,429.74

Finding the Fourth Proportional to 2,374.20, 3,275.91 and 1,429.74

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Solution

The fourth proportional to 2,374.20, 3,275.91 and 1,429.74 is: 1,972.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,374.20 : 3,275.91 = 1,429.74 : x
  2. Step 2: Convert to fraction form
    2,374.20/3,275.91 = 1,429.74/x
  3. Step 3: Cross multiply
    2,374.20x = 3,275.91 × 1,429.74
  4. Step 4: Simplify right side
    2,374.20x = 4,683,699.56
  5. Step 5: Solve for x
    x = 4,683,699.56/2,374.20
  6. Step 6: Final answer
    x = 1,972.75

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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.