Home / 5,283.16-7,925.34-1,387.64

Finding the Fourth Proportional to 5,283.16, 7,925.34 and 1,387.64

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Solution

The fourth proportional to 5,283.16, 7,925.34 and 1,387.64 is: 2,081.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,283.16 : 7,925.34 = 1,387.64 : x
  2. Step 2: Convert to fraction form
    5,283.16/7,925.34 = 1,387.64/x
  3. Step 3: Cross multiply
    5,283.16x = 7,925.34 × 1,387.64
  4. Step 4: Simplify right side
    5,283.16x = 10,997,518.80
  5. Step 5: Solve for x
    x = 10,997,518.80/5,283.16
  6. Step 6: Final answer
    x = 2,081.62

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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.