Home / 5,641.18-7,781.43-4,152.94

Finding the Fourth Proportional to 5,641.18, 7,781.43 and 4,152.94

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Solution

The fourth proportional to 5,641.18, 7,781.43 and 4,152.94 is: 5,728.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,641.18 : 7,781.43 = 4,152.94 : x
  2. Step 2: Convert to fraction form
    5,641.18/7,781.43 = 4,152.94/x
  3. Step 3: Cross multiply
    5,641.18x = 7,781.43 × 4,152.94
  4. Step 4: Simplify right side
    5,641.18x = 32,315,808.02
  5. Step 5: Solve for x
    x = 32,315,808.02/5,641.18
  6. Step 6: Final answer
    x = 5,728.56

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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.