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Finding the Fourth Proportional to 5,392.65, 8,088.71 and 1,881.57

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Solution

The fourth proportional to 5,392.65, 8,088.71 and 1,881.57 is: 2,822.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,392.65 : 8,088.71 = 1,881.57 : x
  2. Step 2: Convert to fraction form
    5,392.65/8,088.71 = 1,881.57/x
  3. Step 3: Cross multiply
    5,392.65x = 8,088.71 × 1,881.57
  4. Step 4: Simplify right side
    5,392.65x = 15,219,464.67
  5. Step 5: Solve for x
    x = 15,219,464.67/5,392.65
  6. Step 6: Final answer
    x = 2,822.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.