Home / 1,721.44-2,586.48-1,617.76

Finding the Fourth Proportional to 1,721.44, 2,586.48 and 1,617.76

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Solution

The fourth proportional to 1,721.44, 2,586.48 and 1,617.76 is: 2,430.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.44 : 2,586.48 = 1,617.76 : x
  2. Step 2: Convert to fraction form
    1,721.44/2,586.48 = 1,617.76/x
  3. Step 3: Cross multiply
    1,721.44x = 2,586.48 × 1,617.76
  4. Step 4: Simplify right side
    1,721.44x = 4,184,303.88
  5. Step 5: Solve for x
    x = 4,184,303.88/1,721.44
  6. Step 6: Final answer
    x = 2,430.70

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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.