Home / 7,540.21-10,405.02-4,554.28

Finding the Fourth Proportional to 7,540.21, 10,405.02 and 4,554.28

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Solution

The fourth proportional to 7,540.21, 10,405.02 and 4,554.28 is: 6,284.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,540.21 : 10,405.02 = 4,554.28 : x
  2. Step 2: Convert to fraction form
    7,540.21/10,405.02 = 4,554.28/x
  3. Step 3: Cross multiply
    7,540.21x = 10,405.02 × 4,554.28
  4. Step 4: Simplify right side
    7,540.21x = 47,387,374.49
  5. Step 5: Solve for x
    x = 47,387,374.49/7,540.21
  6. Step 6: Final answer
    x = 6,284.62

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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.