Home / 3,513.64-5,270.04-916.51

Finding the Fourth Proportional to 3,513.64, 5,270.04 and 916.51

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Solution

The fourth proportional to 3,513.64, 5,270.04 and 916.51 is: 1,374.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,513.64 : 5,270.04 = 916.51 : x
  2. Step 2: Convert to fraction form
    3,513.64/5,270.04 = 916.51/x
  3. Step 3: Cross multiply
    3,513.64x = 5,270.04 × 916.51
  4. Step 4: Simplify right side
    3,513.64x = 4,830,044.36
  5. Step 5: Solve for x
    x = 4,830,044.36/3,513.64
  6. Step 6: Final answer
    x = 1,374.66

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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.