Home / 1,727.87-2,384.33-981.93

Finding the Fourth Proportional to 1,727.87, 2,384.33 and 981.93

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Solution

The fourth proportional to 1,727.87, 2,384.33 and 981.93 is: 1,354.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,727.87 : 2,384.33 = 981.93 : x
  2. Step 2: Convert to fraction form
    1,727.87/2,384.33 = 981.93/x
  3. Step 3: Cross multiply
    1,727.87x = 2,384.33 × 981.93
  4. Step 4: Simplify right side
    1,727.87x = 2,341,240.25
  5. Step 5: Solve for x
    x = 2,341,240.25/1,727.87
  6. Step 6: Final answer
    x = 1,354.99

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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.