Home / 7,022.40-10,527.48-2,638.68

Finding the Fourth Proportional to 7,022.40, 10,527.48 and 2,638.68

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Solution

The fourth proportional to 7,022.40, 10,527.48 and 2,638.68 is: 3,955.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,022.40 : 10,527.48 = 2,638.68 : x
  2. Step 2: Convert to fraction form
    7,022.40/10,527.48 = 2,638.68/x
  3. Step 3: Cross multiply
    7,022.40x = 10,527.48 × 2,638.68
  4. Step 4: Simplify right side
    7,022.40x = 27,778,650.93
  5. Step 5: Solve for x
    x = 27,778,650.93/7,022.40
  6. Step 6: Final answer
    x = 3,955.72

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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.