Home / 7,728.48-10,665.14-4,370.90

Finding the Fourth Proportional to 7,728.48, 10,665.14 and 4,370.90

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Solution

The fourth proportional to 7,728.48, 10,665.14 and 4,370.90 is: 6,031.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,728.48 : 10,665.14 = 4,370.90 : x
  2. Step 2: Convert to fraction form
    7,728.48/10,665.14 = 4,370.90/x
  3. Step 3: Cross multiply
    7,728.48x = 10,665.14 × 4,370.90
  4. Step 4: Simplify right side
    7,728.48x = 46,616,185.25
  5. Step 5: Solve for x
    x = 46,616,185.25/7,728.48
  6. Step 6: Final answer
    x = 6,031.74

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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.