Home / 2,485.08-3,428.10-1,554.12

Finding the Fourth Proportional to 2,485.08, 3,428.10 and 1,554.12

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Solution

The fourth proportional to 2,485.08, 3,428.10 and 1,554.12 is: 2,143.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,485.08 : 3,428.10 = 1,554.12 : x
  2. Step 2: Convert to fraction form
    2,485.08/3,428.10 = 1,554.12/x
  3. Step 3: Cross multiply
    2,485.08x = 3,428.10 × 1,554.12
  4. Step 4: Simplify right side
    2,485.08x = 5,327,678.77
  5. Step 5: Solve for x
    x = 5,327,678.77/2,485.08
  6. Step 6: Final answer
    x = 2,143.87

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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.