Home / 7,772.64-11,655.96-2,577.12

Finding the Fourth Proportional to 7,772.64, 11,655.96 and 2,577.12

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Solution

The fourth proportional to 7,772.64, 11,655.96 and 2,577.12 is: 3,864.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,772.64 : 11,655.96 = 2,577.12 : x
  2. Step 2: Convert to fraction form
    7,772.64/11,655.96 = 2,577.12/x
  3. Step 3: Cross multiply
    7,772.64x = 11,655.96 × 2,577.12
  4. Step 4: Simplify right side
    7,772.64x = 30,038,807.64
  5. Step 5: Solve for x
    x = 30,038,807.64/7,772.64
  6. Step 6: Final answer
    x = 3,864.69

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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.