Home / 1,717.13-2,369.60-1,127.63

Finding the Fourth Proportional to 1,717.13, 2,369.60 and 1,127.63

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Solution

The fourth proportional to 1,717.13, 2,369.60 and 1,127.63 is: 1,556.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,717.13 : 2,369.60 = 1,127.63 : x
  2. Step 2: Convert to fraction form
    1,717.13/2,369.60 = 1,127.63/x
  3. Step 3: Cross multiply
    1,717.13x = 2,369.60 × 1,127.63
  4. Step 4: Simplify right side
    1,717.13x = 2,672,014.56
  5. Step 5: Solve for x
    x = 2,672,014.56/1,717.13
  6. Step 6: Final answer
    x = 1,556.10

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1.5x scale

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.