Home / 3,117.16-4,301.68-1,719.91

Finding the Fourth Proportional to 3,117.16, 4,301.68 and 1,719.91

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Solution

The fourth proportional to 3,117.16, 4,301.68 and 1,719.91 is: 2,373.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.16 : 4,301.68 = 1,719.91 : x
  2. Step 2: Convert to fraction form
    3,117.16/4,301.68 = 1,719.91/x
  3. Step 3: Cross multiply
    3,117.16x = 4,301.68 × 1,719.91
  4. Step 4: Simplify right side
    3,117.16x = 7,398,483.10
  5. Step 5: Solve for x
    x = 7,398,483.10/3,117.16
  6. Step 6: Final answer
    x = 2,373.47

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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.