Home / 5,417.94-8,130.31-2,130.94

Finding the Fourth Proportional to 5,417.94, 8,130.31 and 2,130.94

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Solution

The fourth proportional to 5,417.94, 8,130.31 and 2,130.94 is: 3,197.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,417.94 : 8,130.31 = 2,130.94 : x
  2. Step 2: Convert to fraction form
    5,417.94/8,130.31 = 2,130.94/x
  3. Step 3: Cross multiply
    5,417.94x = 8,130.31 × 2,130.94
  4. Step 4: Simplify right side
    5,417.94x = 17,325,207.63
  5. Step 5: Solve for x
    x = 17,325,207.63/5,417.94
  6. Step 6: Final answer
    x = 3,197.75

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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.