Home / 5,420.58-7,480.27-3,030.42

Finding the Fourth Proportional to 5,420.58, 7,480.27 and 3,030.42

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Solution

The fourth proportional to 5,420.58, 7,480.27 and 3,030.42 is: 4,181.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,420.58 : 7,480.27 = 3,030.42 : x
  2. Step 2: Convert to fraction form
    5,420.58/7,480.27 = 3,030.42/x
  3. Step 3: Cross multiply
    5,420.58x = 7,480.27 × 3,030.42
  4. Step 4: Simplify right side
    5,420.58x = 22,668,359.81
  5. Step 5: Solve for x
    x = 22,668,359.81/5,420.58
  6. Step 6: Final answer
    x = 4,181.91

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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.