Home / 1,721.32-2,374.36-1,500.79

Finding the Fourth Proportional to 1,721.32, 2,374.36 and 1,500.79

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Solution

The fourth proportional to 1,721.32, 2,374.36 and 1,500.79 is: 2,070.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.32 : 2,374.36 = 1,500.79 : x
  2. Step 2: Convert to fraction form
    1,721.32/2,374.36 = 1,500.79/x
  3. Step 3: Cross multiply
    1,721.32x = 2,374.36 × 1,500.79
  4. Step 4: Simplify right side
    1,721.32x = 3,563,415.74
  5. Step 5: Solve for x
    x = 3,563,415.74/1,721.32
  6. Step 6: Final answer
    x = 2,070.16

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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.