Home / 5,159.16-7,119.42-2,920.92

Finding the Fourth Proportional to 5,159.16, 7,119.42 and 2,920.92

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Solution

The fourth proportional to 5,159.16, 7,119.42 and 2,920.92 is: 4,030.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,159.16 : 7,119.42 = 2,920.92 : x
  2. Step 2: Convert to fraction form
    5,159.16/7,119.42 = 2,920.92/x
  3. Step 3: Cross multiply
    5,159.16x = 7,119.42 × 2,920.92
  4. Step 4: Simplify right side
    5,159.16x = 20,795,256.27
  5. Step 5: Solve for x
    x = 20,795,256.27/5,159.16
  6. Step 6: Final answer
    x = 4,030.74

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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.