Home / 1,729.04-2,386.60-1,257.01

Finding the Fourth Proportional to 1,729.04, 2,386.60 and 1,257.01

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Solution

The fourth proportional to 1,729.04, 2,386.60 and 1,257.01 is: 1,735.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.04 : 2,386.60 = 1,257.01 : x
  2. Step 2: Convert to fraction form
    1,729.04/2,386.60 = 1,257.01/x
  3. Step 3: Cross multiply
    1,729.04x = 2,386.60 × 1,257.01
  4. Step 4: Simplify right side
    1,729.04x = 2,999,970.96
  5. Step 5: Solve for x
    x = 2,999,970.96/1,729.04
  6. Step 6: Final answer
    x = 1,735.06

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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.