Home / 1,722.48-2,587.68-1,073.40

Finding the Fourth Proportional to 1,722.48, 2,587.68 and 1,073.40

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Solution

The fourth proportional to 1,722.48, 2,587.68 and 1,073.40 is: 1,612.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,722.48 : 2,587.68 = 1,073.40 : x
  2. Step 2: Convert to fraction form
    1,722.48/2,587.68 = 1,073.40/x
  3. Step 3: Cross multiply
    1,722.48x = 2,587.68 × 1,073.40
  4. Step 4: Simplify right side
    1,722.48x = 2,777,615.71
  5. Step 5: Solve for x
    x = 2,777,615.71/1,722.48
  6. Step 6: Final answer
    x = 1,612.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.