Home / 4,243.69-5,855.45-2,565.20

Finding the Fourth Proportional to 4,243.69, 5,855.45 and 2,565.20

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Solution

The fourth proportional to 4,243.69, 5,855.45 and 2,565.20 is: 3,539.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,243.69 : 5,855.45 = 2,565.20 : x
  2. Step 2: Convert to fraction form
    4,243.69/5,855.45 = 2,565.20/x
  3. Step 3: Cross multiply
    4,243.69x = 5,855.45 × 2,565.20
  4. Step 4: Simplify right side
    4,243.69x = 15,020,373.08
  5. Step 5: Solve for x
    x = 15,020,373.08/4,243.69
  6. Step 6: Final answer
    x = 3,539.46

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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.