Home / 1,720.17-2,373.60-1,011.93

Finding the Fourth Proportional to 1,720.17, 2,373.60 and 1,011.93

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Solution

The fourth proportional to 1,720.17, 2,373.60 and 1,011.93 is: 1,396.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,720.17 : 2,373.60 = 1,011.93 : x
  2. Step 2: Convert to fraction form
    1,720.17/2,373.60 = 1,011.93/x
  3. Step 3: Cross multiply
    1,720.17x = 2,373.60 × 1,011.93
  4. Step 4: Simplify right side
    1,720.17x = 2,401,911.94
  5. Step 5: Solve for x
    x = 2,401,911.94/1,720.17
  6. Step 6: Final answer
    x = 1,396.32

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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.