Home / 3,117.16-4,676.76-1,143.16

Finding the Fourth Proportional to 3,117.16, 4,676.76 and 1,143.16

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Solution

The fourth proportional to 3,117.16, 4,676.76 and 1,143.16 is: 1,715.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.16 : 4,676.76 = 1,143.16 : x
  2. Step 2: Convert to fraction form
    3,117.16/4,676.76 = 1,143.16/x
  3. Step 3: Cross multiply
    3,117.16x = 4,676.76 × 1,143.16
  4. Step 4: Simplify right side
    3,117.16x = 5,346,302.79
  5. Step 5: Solve for x
    x = 5,346,302.79/3,117.16
  6. Step 6: Final answer
    x = 1,715.12

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1.5x scale

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.