Home / 2,835.39-3,911.91-1,715.91

Finding the Fourth Proportional to 2,835.39, 3,911.91 and 1,715.91

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Solution

The fourth proportional to 2,835.39, 3,911.91 and 1,715.91 is: 2,367.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,835.39 : 3,911.91 = 1,715.91 : x
  2. Step 2: Convert to fraction form
    2,835.39/3,911.91 = 1,715.91/x
  3. Step 3: Cross multiply
    2,835.39x = 3,911.91 × 1,715.91
  4. Step 4: Simplify right side
    2,835.39x = 6,712,457.35
  5. Step 5: Solve for x
    x = 6,712,457.35/2,835.39
  6. Step 6: Final answer
    x = 2,367.38

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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.