Home / 5,154.80-7,113.65-3,030.21

Finding the Fourth Proportional to 5,154.80, 7,113.65 and 3,030.21

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Solution

The fourth proportional to 5,154.80, 7,113.65 and 3,030.21 is: 4,181.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,154.80 : 7,113.65 = 3,030.21 : x
  2. Step 2: Convert to fraction form
    5,154.80/7,113.65 = 3,030.21/x
  3. Step 3: Cross multiply
    5,154.80x = 7,113.65 × 3,030.21
  4. Step 4: Simplify right side
    5,154.80x = 21,555,838.22
  5. Step 5: Solve for x
    x = 21,555,838.22/5,154.80
  6. Step 6: Final answer
    x = 4,181.71

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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.