Home / 1,548.16-2,319.53-1,289.81

Finding the Fourth Proportional to 1,548.16, 2,319.53 and 1,289.81

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Solution

The fourth proportional to 1,548.16, 2,319.53 and 1,289.81 is: 1,932.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,548.16 : 2,319.53 = 1,289.81 : x
  2. Step 2: Convert to fraction form
    1,548.16/2,319.53 = 1,289.81/x
  3. Step 3: Cross multiply
    1,548.16x = 2,319.53 × 1,289.81
  4. Step 4: Simplify right side
    1,548.16x = 2,991,762.01
  5. Step 5: Solve for x
    x = 2,991,762.01/1,548.16
  6. Step 6: Final answer
    x = 1,932.47

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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.