Home / 5,140.17-7,085.51-4,194.30

Finding the Fourth Proportional to 5,140.17, 7,085.51 and 4,194.30

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Solution

The fourth proportional to 5,140.17, 7,085.51 and 4,194.30 is: 5,781.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.17 : 7,085.51 = 4,194.30 : x
  2. Step 2: Convert to fraction form
    5,140.17/7,085.51 = 4,194.30/x
  3. Step 3: Cross multiply
    5,140.17x = 7,085.51 × 4,194.30
  4. Step 4: Simplify right side
    5,140.17x = 29,718,754.59
  5. Step 5: Solve for x
    x = 29,718,754.59/5,140.17
  6. Step 6: Final answer
    x = 5,781.67

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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.