Home / 1,722.23-2,376.70-976.17

Finding the Fourth Proportional to 1,722.23, 2,376.70 and 976.17

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Solution

The fourth proportional to 1,722.23, 2,376.70 and 976.17 is: 1,347.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,722.23 : 2,376.70 = 976.17 : x
  2. Step 2: Convert to fraction form
    1,722.23/2,376.70 = 976.17/x
  3. Step 3: Cross multiply
    1,722.23x = 2,376.70 × 976.17
  4. Step 4: Simplify right side
    1,722.23x = 2,320,063.24
  5. Step 5: Solve for x
    x = 2,320,063.24/1,722.23
  6. Step 6: Final answer
    x = 1,347.13

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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.