Home / 4,335.03-5,979.29-4,190.40

Finding the Fourth Proportional to 4,335.03, 5,979.29 and 4,190.40

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Solution

The fourth proportional to 4,335.03, 5,979.29 and 4,190.40 is: 5,779.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,335.03 : 5,979.29 = 4,190.40 : x
  2. Step 2: Convert to fraction form
    4,335.03/5,979.29 = 4,190.40/x
  3. Step 3: Cross multiply
    4,335.03x = 5,979.29 × 4,190.40
  4. Step 4: Simplify right side
    4,335.03x = 25,055,595.86
  5. Step 5: Solve for x
    x = 25,055,595.86/4,335.03
  6. Step 6: Final answer
    x = 5,779.80

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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.