Home / 7,827.89-10,802.55-4,291.11

Finding the Fourth Proportional to 7,827.89, 10,802.55 and 4,291.11

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Solution

The fourth proportional to 7,827.89, 10,802.55 and 4,291.11 is: 5,921.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,827.89 : 10,802.55 = 4,291.11 : x
  2. Step 2: Convert to fraction form
    7,827.89/10,802.55 = 4,291.11/x
  3. Step 3: Cross multiply
    7,827.89x = 10,802.55 × 4,291.11
  4. Step 4: Simplify right side
    7,827.89x = 46,354,930.33
  5. Step 5: Solve for x
    x = 46,354,930.33/7,827.89
  6. Step 6: Final answer
    x = 5,921.77

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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.