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Finding the Fourth Proportional to 1,719.17, 2,372.38 and 973.17

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Solution

The fourth proportional to 1,719.17, 2,372.38 and 973.17 is: 1,342.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,719.17 : 2,372.38 = 973.17 : x
  2. Step 2: Convert to fraction form
    1,719.17/2,372.38 = 973.17/x
  3. Step 3: Cross multiply
    1,719.17x = 2,372.38 × 973.17
  4. Step 4: Simplify right side
    1,719.17x = 2,308,719.94
  5. Step 5: Solve for x
    x = 2,308,719.94/1,719.17
  6. Step 6: Final answer
    x = 1,342.93

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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.