Home / 1,055.42-1,456.26-613.30

Finding the Fourth Proportional to 1,055.42, 1,456.26 and 613.30

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Solution

The fourth proportional to 1,055.42, 1,456.26 and 613.30 is: 846.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,055.42 : 1,456.26 = 613.30 : x
  2. Step 2: Convert to fraction form
    1,055.42/1,456.26 = 613.30/x
  3. Step 3: Cross multiply
    1,055.42x = 1,456.26 × 613.30
  4. Step 4: Simplify right side
    1,055.42x = 893,124.26
  5. Step 5: Solve for x
    x = 893,124.26/1,055.42
  6. Step 6: Final answer
    x = 846.23

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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.