Home / 5,242.20-7,235.27-3,005.58

Finding the Fourth Proportional to 5,242.20, 7,235.27 and 3,005.58

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Solution

The fourth proportional to 5,242.20, 7,235.27 and 3,005.58 is: 4,148.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,242.20 : 7,235.27 = 3,005.58 : x
  2. Step 2: Convert to fraction form
    5,242.20/7,235.27 = 3,005.58/x
  3. Step 3: Cross multiply
    5,242.20x = 7,235.27 × 3,005.58
  4. Step 4: Simplify right side
    5,242.20x = 21,746,182.81
  5. Step 5: Solve for x
    x = 21,746,182.81/5,242.20
  6. Step 6: Final answer
    x = 4,148.29

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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.