Home / 1,248.81-1,875.45-1,185.03

Finding the Fourth Proportional to 1,248.81, 1,875.45 and 1,185.03

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Solution

The fourth proportional to 1,248.81, 1,875.45 and 1,185.03 is: 1,779.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248.81 : 1,875.45 = 1,185.03 : x
  2. Step 2: Convert to fraction form
    1,248.81/1,875.45 = 1,185.03/x
  3. Step 3: Cross multiply
    1,248.81x = 1,875.45 × 1,185.03
  4. Step 4: Simplify right side
    1,248.81x = 2,222,464.51
  5. Step 5: Solve for x
    x = 2,222,464.51/1,248.81
  6. Step 6: Final answer
    x = 1,779.67

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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.