Home / 1,765.08-2,431.53-1,485.30

Finding the Fourth Proportional to 1,765.08, 2,431.53 and 1,485.30

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Solution

The fourth proportional to 1,765.08, 2,431.53 and 1,485.30 is: 2,046.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,765.08 : 2,431.53 = 1,485.30 : x
  2. Step 2: Convert to fraction form
    1,765.08/2,431.53 = 1,485.30/x
  3. Step 3: Cross multiply
    1,765.08x = 2,431.53 × 1,485.30
  4. Step 4: Simplify right side
    1,765.08x = 3,611,551.51
  5. Step 5: Solve for x
    x = 3,611,551.51/1,765.08
  6. Step 6: Final answer
    x = 2,046.11

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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.