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Finding the Fourth Proportional to 2,278.02, 3,417.06 and 612.23

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Solution

The fourth proportional to 2,278.02, 3,417.06 and 612.23 is: 918.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,278.02 : 3,417.06 = 612.23 : x
  2. Step 2: Convert to fraction form
    2,278.02/3,417.06 = 612.23/x
  3. Step 3: Cross multiply
    2,278.02x = 3,417.06 × 612.23
  4. Step 4: Simplify right side
    2,278.02x = 2,092,009.56
  5. Step 5: Solve for x
    x = 2,092,009.56/2,278.02
  6. Step 6: Final answer
    x = 918.35

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1.5x scale

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.