Home / 7,235.40-9,985.14-4,251.36

Finding the Fourth Proportional to 7,235.40, 9,985.14 and 4,251.36

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Solution

The fourth proportional to 7,235.40, 9,985.14 and 4,251.36 is: 5,867.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,235.40 : 9,985.14 = 4,251.36 : x
  2. Step 2: Convert to fraction form
    7,235.40/9,985.14 = 4,251.36/x
  3. Step 3: Cross multiply
    7,235.40x = 9,985.14 × 4,251.36
  4. Step 4: Simplify right side
    7,235.40x = 42,450,424.79
  5. Step 5: Solve for x
    x = 42,450,424.79/7,235.40
  6. Step 6: Final answer
    x = 5,867.05

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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.