Home / 2,953.90-4,429.40-1,721.74

Finding the Fourth Proportional to 2,953.90, 4,429.40 and 1,721.74

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Solution

The fourth proportional to 2,953.90, 4,429.40 and 1,721.74 is: 2,581.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,953.90 : 4,429.40 = 1,721.74 : x
  2. Step 2: Convert to fraction form
    2,953.90/4,429.40 = 1,721.74/x
  3. Step 3: Cross multiply
    2,953.90x = 4,429.40 × 1,721.74
  4. Step 4: Simplify right side
    2,953.90x = 7,626,275.16
  5. Step 5: Solve for x
    x = 7,626,275.16/2,953.90
  6. Step 6: Final answer
    x = 2,581.76

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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.