Home / 7,784.28-10,742.51-4,426.98

Finding the Fourth Proportional to 7,784.28, 10,742.51 and 4,426.98

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Solution

The fourth proportional to 7,784.28, 10,742.51 and 4,426.98 is: 6,109.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,784.28 : 10,742.51 = 4,426.98 : x
  2. Step 2: Convert to fraction form
    7,784.28/10,742.51 = 4,426.98/x
  3. Step 3: Cross multiply
    7,784.28x = 10,742.51 × 4,426.98
  4. Step 4: Simplify right side
    7,784.28x = 47,556,876.92
  5. Step 5: Solve for x
    x = 47,556,876.92/7,784.28
  6. Step 6: Final answer
    x = 6,109.35

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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.