Home / 4,378.68-6,042.56-2,389.28

Finding the Fourth Proportional to 4,378.68, 6,042.56 and 2,389.28

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Solution

The fourth proportional to 4,378.68, 6,042.56 and 2,389.28 is: 3,297.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,378.68 : 6,042.56 = 2,389.28 : x
  2. Step 2: Convert to fraction form
    4,378.68/6,042.56 = 2,389.28/x
  3. Step 3: Cross multiply
    4,378.68x = 6,042.56 × 2,389.28
  4. Step 4: Simplify right side
    4,378.68x = 14,437,325.60
  5. Step 5: Solve for x
    x = 14,437,325.60/4,378.68
  6. Step 6: Final answer
    x = 3,297.19

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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.