Home / 6,860.79-9,468.36-4,207.50

Finding the Fourth Proportional to 6,860.79, 9,468.36 and 4,207.50

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Solution

The fourth proportional to 6,860.79, 9,468.36 and 4,207.50 is: 5,806.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,860.79 : 9,468.36 = 4,207.50 : x
  2. Step 2: Convert to fraction form
    6,860.79/9,468.36 = 4,207.50/x
  3. Step 3: Cross multiply
    6,860.79x = 9,468.36 × 4,207.50
  4. Step 4: Simplify right side
    6,860.79x = 39,838,124.70
  5. Step 5: Solve for x
    x = 39,838,124.70/6,860.79
  6. Step 6: Final answer
    x = 5,806.64

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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.