Home / 1,041.16-1,436.66-621.48

Finding the Fourth Proportional to 1,041.16, 1,436.66 and 621.48

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Solution

The fourth proportional to 1,041.16, 1,436.66 and 621.48 is: 857.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,041.16 : 1,436.66 = 621.48 : x
  2. Step 2: Convert to fraction form
    1,041.16/1,436.66 = 621.48/x
  3. Step 3: Cross multiply
    1,041.16x = 1,436.66 × 621.48
  4. Step 4: Simplify right side
    1,041.16x = 892,855.46
  5. Step 5: Solve for x
    x = 892,855.46/1,041.16
  6. Step 6: Final answer
    x = 857.56

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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.