Home / 3,486.91-4,808.01-2,688.42

Finding the Fourth Proportional to 3,486.91, 4,808.01 and 2,688.42

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Solution

The fourth proportional to 3,486.91, 4,808.01 and 2,688.42 is: 3,707.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,486.91 : 4,808.01 = 2,688.42 : x
  2. Step 2: Convert to fraction form
    3,486.91/4,808.01 = 2,688.42/x
  3. Step 3: Cross multiply
    3,486.91x = 4,808.01 × 2,688.42
  4. Step 4: Simplify right side
    3,486.91x = 12,925,963.23
  5. Step 5: Solve for x
    x = 12,925,963.23/3,486.91
  6. Step 6: Final answer
    x = 3,707.00

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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.