Home / 7,827.11-10,801.47-4,290.45

Finding the Fourth Proportional to 7,827.11, 10,801.47 and 4,290.45

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Solution

The fourth proportional to 7,827.11, 10,801.47 and 4,290.45 is: 5,920.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,827.11 : 10,801.47 = 4,290.45 : x
  2. Step 2: Convert to fraction form
    7,827.11/10,801.47 = 4,290.45/x
  3. Step 3: Cross multiply
    7,827.11x = 10,801.47 × 4,290.45
  4. Step 4: Simplify right side
    7,827.11x = 46,343,166.96
  5. Step 5: Solve for x
    x = 46,343,166.96/7,827.11
  6. Step 6: Final answer
    x = 5,920.86

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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.