Home / 7,830.30-10,805.58-4,293.39

Finding the Fourth Proportional to 7,830.30, 10,805.58 and 4,293.39

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Solution

The fourth proportional to 7,830.30, 10,805.58 and 4,293.39 is: 5,924.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,830.30 : 10,805.58 = 4,293.39 : x
  2. Step 2: Convert to fraction form
    7,830.30/10,805.58 = 4,293.39/x
  3. Step 3: Cross multiply
    7,830.30x = 10,805.58 × 4,293.39
  4. Step 4: Simplify right side
    7,830.30x = 46,392,569.12
  5. Step 5: Solve for x
    x = 46,392,569.12/7,830.30
  6. Step 6: Final answer
    x = 5,924.75

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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.