Home / 9,431.40-14,148.45-2,858.10

Finding the Fourth Proportional to 9,431.40, 14,148.45 and 2,858.10

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Solution

The fourth proportional to 9,431.40, 14,148.45 and 2,858.10 is: 4,287.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,431.40 : 14,148.45 = 2,858.10 : x
  2. Step 2: Convert to fraction form
    9,431.40/14,148.45 = 2,858.10/x
  3. Step 3: Cross multiply
    9,431.40x = 14,148.45 × 2,858.10
  4. Step 4: Simplify right side
    9,431.40x = 40,437,684.95
  5. Step 5: Solve for x
    x = 40,437,684.95/9,431.40
  6. Step 6: Final answer
    x = 4,287.56

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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.