Home / 4,158.80-5,739.36-2,390.57

Finding the Fourth Proportional to 4,158.80, 5,739.36 and 2,390.57

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Solution

The fourth proportional to 4,158.80, 5,739.36 and 2,390.57 is: 3,299.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,158.80 : 5,739.36 = 2,390.57 : x
  2. Step 2: Convert to fraction form
    4,158.80/5,739.36 = 2,390.57/x
  3. Step 3: Cross multiply
    4,158.80x = 5,739.36 × 2,390.57
  4. Step 4: Simplify right side
    4,158.80x = 13,720,341.84
  5. Step 5: Solve for x
    x = 13,720,341.84/4,158.80
  6. Step 6: Final answer
    x = 3,299.11

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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.