Home / 4,145.40-5,720.49-2,376.77

Finding the Fourth Proportional to 4,145.40, 5,720.49 and 2,376.77

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Solution

The fourth proportional to 4,145.40, 5,720.49 and 2,376.77 is: 3,279.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,145.40 : 5,720.49 = 2,376.77 : x
  2. Step 2: Convert to fraction form
    4,145.40/5,720.49 = 2,376.77/x
  3. Step 3: Cross multiply
    4,145.40x = 5,720.49 × 2,376.77
  4. Step 4: Simplify right side
    4,145.40x = 13,596,260.41
  5. Step 5: Solve for x
    x = 13,596,260.41/4,145.40
  6. Step 6: Final answer
    x = 3,279.84

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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.