Home / 7,023.40-10,528.98-2,639.68

Finding the Fourth Proportional to 7,023.40, 10,528.98 and 2,639.68

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Solution

The fourth proportional to 7,023.40, 10,528.98 and 2,639.68 is: 3,957.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,023.40 : 10,528.98 = 2,639.68 : x
  2. Step 2: Convert to fraction form
    7,023.40/10,528.98 = 2,639.68/x
  3. Step 3: Cross multiply
    7,023.40x = 10,528.98 × 2,639.68
  4. Step 4: Simplify right side
    7,023.40x = 27,793,137.93
  5. Step 5: Solve for x
    x = 27,793,137.93/7,023.40
  6. Step 6: Final answer
    x = 3,957.22

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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.