Home / 2,865.26-4,290.91-1,985.24

Finding the Fourth Proportional to 2,865.26, 4,290.91 and 1,985.24

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Solution

The fourth proportional to 2,865.26, 4,290.91 and 1,985.24 is: 2,973.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,865.26 : 4,290.91 = 1,985.24 : x
  2. Step 2: Convert to fraction form
    2,865.26/4,290.91 = 1,985.24/x
  3. Step 3: Cross multiply
    2,865.26x = 4,290.91 × 1,985.24
  4. Step 4: Simplify right side
    2,865.26x = 8,518,491.93
  5. Step 5: Solve for x
    x = 8,518,491.93/2,865.26
  6. Step 6: Final answer
    x = 2,973.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.