Home / 1,527.40-2,290.96-487.36

Finding the Fourth Proportional to 1,527.40, 2,290.96 and 487.36

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Solution

The fourth proportional to 1,527.40, 2,290.96 and 487.36 is: 731.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,527.40 : 2,290.96 = 487.36 : x
  2. Step 2: Convert to fraction form
    1,527.40/2,290.96 = 487.36/x
  3. Step 3: Cross multiply
    1,527.40x = 2,290.96 × 487.36
  4. Step 4: Simplify right side
    1,527.40x = 1,116,522.27
  5. Step 5: Solve for x
    x = 1,116,522.27/1,527.40
  6. Step 6: Final answer
    x = 731.00

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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.