Home / 1,722.14-2,386.58-1,689.32

Finding the Fourth Proportional to 1,722.14, 2,386.58 and 1,689.32

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Solution

The fourth proportional to 1,722.14, 2,386.58 and 1,689.32 is: 2,341.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,722.14 : 2,386.58 = 1,689.32 : x
  2. Step 2: Convert to fraction form
    1,722.14/2,386.58 = 1,689.32/x
  3. Step 3: Cross multiply
    1,722.14x = 2,386.58 × 1,689.32
  4. Step 4: Simplify right side
    1,722.14x = 4,031,697.33
  5. Step 5: Solve for x
    x = 4,031,697.33/1,722.14
  6. Step 6: Final answer
    x = 2,341.10

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.