Home / 7,442.34-10,270.38-4,085.20

Finding the Fourth Proportional to 7,442.34, 10,270.38 and 4,085.20

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Solution

The fourth proportional to 7,442.34, 10,270.38 and 4,085.20 is: 5,637.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,442.34 : 10,270.38 = 4,085.20 : x
  2. Step 2: Convert to fraction form
    7,442.34/10,270.38 = 4,085.20/x
  3. Step 3: Cross multiply
    7,442.34x = 10,270.38 × 4,085.20
  4. Step 4: Simplify right side
    7,442.34x = 41,956,584.53
  5. Step 5: Solve for x
    x = 41,956,584.53/7,442.34
  6. Step 6: Final answer
    x = 5,637.56

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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.