Home / 7,830.79-10,806.48-4,294.09

Finding the Fourth Proportional to 7,830.79, 10,806.48 and 4,294.09

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Solution

The fourth proportional to 7,830.79, 10,806.48 and 4,294.09 is: 5,925.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,830.79 : 10,806.48 = 4,294.09 : x
  2. Step 2: Convert to fraction form
    7,830.79/10,806.48 = 4,294.09/x
  3. Step 3: Cross multiply
    7,830.79x = 10,806.48 × 4,294.09
  4. Step 4: Simplify right side
    7,830.79x = 46,403,997.70
  5. Step 5: Solve for x
    x = 46,403,997.70/7,830.79
  6. Step 6: Final answer
    x = 5,925.84

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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.