Home / 5,291.85-7,937.70-1,782.63

Finding the Fourth Proportional to 5,291.85, 7,937.70 and 1,782.63

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Solution

The fourth proportional to 5,291.85, 7,937.70 and 1,782.63 is: 2,673.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,291.85 : 7,937.70 = 1,782.63 : x
  2. Step 2: Convert to fraction form
    5,291.85/7,937.70 = 1,782.63/x
  3. Step 3: Cross multiply
    5,291.85x = 7,937.70 × 1,782.63
  4. Step 4: Simplify right side
    5,291.85x = 14,149,982.15
  5. Step 5: Solve for x
    x = 14,149,982.15/5,291.85
  6. Step 6: Final answer
    x = 2,673.92

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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.