Home / 6,513.20-8,985.27-3,994.29

Finding the Fourth Proportional to 6,513.20, 8,985.27 and 3,994.29

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Solution

The fourth proportional to 6,513.20, 8,985.27 and 3,994.29 is: 5,510.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,513.20 : 8,985.27 = 3,994.29 : x
  2. Step 2: Convert to fraction form
    6,513.20/8,985.27 = 3,994.29/x
  3. Step 3: Cross multiply
    6,513.20x = 8,985.27 × 3,994.29
  4. Step 4: Simplify right side
    6,513.20x = 35,889,774.11
  5. Step 5: Solve for x
    x = 35,889,774.11/6,513.20
  6. Step 6: Final answer
    x = 5,510.32

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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.