Home / 7,730.16-10,665.75-4,543.21

Finding the Fourth Proportional to 7,730.16, 10,665.75 and 4,543.21

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Solution

The fourth proportional to 7,730.16, 10,665.75 and 4,543.21 is: 6,268.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,730.16 : 10,665.75 = 4,543.21 : x
  2. Step 2: Convert to fraction form
    7,730.16/10,665.75 = 4,543.21/x
  3. Step 3: Cross multiply
    7,730.16x = 10,665.75 × 4,543.21
  4. Step 4: Simplify right side
    7,730.16x = 48,456,789.65
  5. Step 5: Solve for x
    x = 48,456,789.65/7,730.16
  6. Step 6: Final answer
    x = 6,268.54

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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.