Home / 6,141.29-9,213.08-1,980.86

Finding the Fourth Proportional to 6,141.29, 9,213.08 and 1,980.86

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Solution

The fourth proportional to 6,141.29, 9,213.08 and 1,980.86 is: 2,971.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,141.29 : 9,213.08 = 1,980.86 : x
  2. Step 2: Convert to fraction form
    6,141.29/9,213.08 = 1,980.86/x
  3. Step 3: Cross multiply
    6,141.29x = 9,213.08 × 1,980.86
  4. Step 4: Simplify right side
    6,141.29x = 18,249,851.77
  5. Step 5: Solve for x
    x = 18,249,851.77/6,141.29
  6. Step 6: Final answer
    x = 2,971.66

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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.