Home / 1,729.34-2,386.63-983.53

Finding the Fourth Proportional to 1,729.34, 2,386.63 and 983.53

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Solution

The fourth proportional to 1,729.34, 2,386.63 and 983.53 is: 1,357.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.34 : 2,386.63 = 983.53 : x
  2. Step 2: Convert to fraction form
    1,729.34/2,386.63 = 983.53/x
  3. Step 3: Cross multiply
    1,729.34x = 2,386.63 × 983.53
  4. Step 4: Simplify right side
    1,729.34x = 2,347,322.20
  5. Step 5: Solve for x
    x = 2,347,322.20/1,729.34
  6. Step 6: Final answer
    x = 1,357.35

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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.