Home / 4,908.48-7,356.88-1,986.40

Finding the Fourth Proportional to 4,908.48, 7,356.88 and 1,986.40

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Solution

The fourth proportional to 4,908.48, 7,356.88 and 1,986.40 is: 2,977.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,908.48 : 7,356.88 = 1,986.40 : x
  2. Step 2: Convert to fraction form
    4,908.48/7,356.88 = 1,986.40/x
  3. Step 3: Cross multiply
    4,908.48x = 7,356.88 × 1,986.40
  4. Step 4: Simplify right side
    4,908.48x = 14,613,706.43
  5. Step 5: Solve for x
    x = 14,613,706.43/4,908.48
  6. Step 6: Final answer
    x = 2,977.24

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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.