Home / 7,655.64-11,485.08-2,391.18

Finding the Fourth Proportional to 7,655.64, 11,485.08 and 2,391.18

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Solution

The fourth proportional to 7,655.64, 11,485.08 and 2,391.18 is: 3,587.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,655.64 : 11,485.08 = 2,391.18 : x
  2. Step 2: Convert to fraction form
    7,655.64/11,485.08 = 2,391.18/x
  3. Step 3: Cross multiply
    7,655.64x = 11,485.08 × 2,391.18
  4. Step 4: Simplify right side
    7,655.64x = 27,462,893.59
  5. Step 5: Solve for x
    x = 27,462,893.59/7,655.64
  6. Step 6: Final answer
    x = 3,587.28

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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.