Home / 1,504.16-2,076.66-981.68

Finding the Fourth Proportional to 1,504.16, 2,076.66 and 981.68

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Solution

The fourth proportional to 1,504.16, 2,076.66 and 981.68 is: 1,355.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,504.16 : 2,076.66 = 981.68 : x
  2. Step 2: Convert to fraction form
    1,504.16/2,076.66 = 981.68/x
  3. Step 3: Cross multiply
    1,504.16x = 2,076.66 × 981.68
  4. Step 4: Simplify right side
    1,504.16x = 2,038,615.59
  5. Step 5: Solve for x
    x = 2,038,615.59/1,504.16
  6. Step 6: Final answer
    x = 1,355.32

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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.