Home / 5,088.43-7,632.65-1,390.77

Finding the Fourth Proportional to 5,088.43, 7,632.65 and 1,390.77

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Solution

The fourth proportional to 5,088.43, 7,632.65 and 1,390.77 is: 2,086.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,088.43 : 7,632.65 = 1,390.77 : x
  2. Step 2: Convert to fraction form
    5,088.43/7,632.65 = 1,390.77/x
  3. Step 3: Cross multiply
    5,088.43x = 7,632.65 × 1,390.77
  4. Step 4: Simplify right side
    5,088.43x = 10,615,260.64
  5. Step 5: Solve for x
    x = 10,615,260.64/5,088.43
  6. Step 6: Final answer
    x = 2,086.16

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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.