Home / 1,327.21-1,831.59-802.94

Finding the Fourth Proportional to 1,327.21, 1,831.59 and 802.94

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Solution

The fourth proportional to 1,327.21, 1,831.59 and 802.94 is: 1,108.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327.21 : 1,831.59 = 802.94 : x
  2. Step 2: Convert to fraction form
    1,327.21/1,831.59 = 802.94/x
  3. Step 3: Cross multiply
    1,327.21x = 1,831.59 × 802.94
  4. Step 4: Simplify right side
    1,327.21x = 1,470,656.87
  5. Step 5: Solve for x
    x = 1,470,656.87/1,327.21
  6. Step 6: Final answer
    x = 1,108.08

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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.