Home / 7,038.90-10,561.86-3,142.26

Finding the Fourth Proportional to 7,038.90, 10,561.86 and 3,142.26

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Solution

The fourth proportional to 7,038.90, 10,561.86 and 3,142.26 is: 4,714.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,038.90 : 10,561.86 = 3,142.26 : x
  2. Step 2: Convert to fraction form
    7,038.90/10,561.86 = 3,142.26/x
  3. Step 3: Cross multiply
    7,038.90x = 10,561.86 × 3,142.26
  4. Step 4: Simplify right side
    7,038.90x = 33,188,110.20
  5. Step 5: Solve for x
    x = 33,188,110.20/7,038.90
  6. Step 6: Final answer
    x = 4,714.96

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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.