Home / 7,442.80-11,160.60-4,152.40

Finding the Fourth Proportional to 7,442.80, 11,160.60 and 4,152.40

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Solution

The fourth proportional to 7,442.80, 11,160.60 and 4,152.40 is: 6,226.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,442.80 : 11,160.60 = 4,152.40 : x
  2. Step 2: Convert to fraction form
    7,442.80/11,160.60 = 4,152.40/x
  3. Step 3: Cross multiply
    7,442.80x = 11,160.60 × 4,152.40
  4. Step 4: Simplify right side
    7,442.80x = 46,343,275.44
  5. Step 5: Solve for x
    x = 46,343,275.44/7,442.80
  6. Step 6: Final answer
    x = 6,226.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.