Home / 1,615.07-2,228.67-916.44

Finding the Fourth Proportional to 1,615.07, 2,228.67 and 916.44

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Solution

The fourth proportional to 1,615.07, 2,228.67 and 916.44 is: 1,264.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615.07 : 2,228.67 = 916.44 : x
  2. Step 2: Convert to fraction form
    1,615.07/2,228.67 = 916.44/x
  3. Step 3: Cross multiply
    1,615.07x = 2,228.67 × 916.44
  4. Step 4: Simplify right side
    1,615.07x = 2,042,442.33
  5. Step 5: Solve for x
    x = 2,042,442.33/1,615.07
  6. Step 6: Final answer
    x = 1,264.62

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1.5x scale

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.