Home / 3,717.85-5,130.88-2,709.79

Finding the Fourth Proportional to 3,717.85, 5,130.88 and 2,709.79

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Solution

The fourth proportional to 3,717.85, 5,130.88 and 2,709.79 is: 3,739.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,717.85 : 5,130.88 = 2,709.79 : x
  2. Step 2: Convert to fraction form
    3,717.85/5,130.88 = 2,709.79/x
  3. Step 3: Cross multiply
    3,717.85x = 5,130.88 × 2,709.79
  4. Step 4: Simplify right side
    3,717.85x = 13,903,587.71
  5. Step 5: Solve for x
    x = 13,903,587.71/3,717.85
  6. Step 6: Final answer
    x = 3,739.69

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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.