Home / 7,898.28-10,898.88-4,712.56

Finding the Fourth Proportional to 7,898.28, 10,898.88 and 4,712.56

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Solution

The fourth proportional to 7,898.28, 10,898.88 and 4,712.56 is: 6,502.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,898.28 : 10,898.88 = 4,712.56 : x
  2. Step 2: Convert to fraction form
    7,898.28/10,898.88 = 4,712.56/x
  3. Step 3: Cross multiply
    7,898.28x = 10,898.88 × 4,712.56
  4. Step 4: Simplify right side
    7,898.28x = 51,361,625.93
  5. Step 5: Solve for x
    x = 51,361,625.93/7,898.28
  6. Step 6: Final answer
    x = 6,502.89

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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.