Home / 1,720.35-2,582.55-1,708.20

Finding the Fourth Proportional to 1,720.35, 2,582.55 and 1,708.20

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Solution

The fourth proportional to 1,720.35, 2,582.55 and 1,708.20 is: 2,564.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,720.35 : 2,582.55 = 1,708.20 : x
  2. Step 2: Convert to fraction form
    1,720.35/2,582.55 = 1,708.20/x
  3. Step 3: Cross multiply
    1,720.35x = 2,582.55 × 1,708.20
  4. Step 4: Simplify right side
    1,720.35x = 4,411,511.91
  5. Step 5: Solve for x
    x = 4,411,511.91/1,720.35
  6. Step 6: Final answer
    x = 2,564.31

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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.