Home / 1,513.36-2,270.60-539.20

Finding the Fourth Proportional to 1,513.36, 2,270.60 and 539.20

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Solution

The fourth proportional to 1,513.36, 2,270.60 and 539.20 is: 809.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,513.36 : 2,270.60 = 539.20 : x
  2. Step 2: Convert to fraction form
    1,513.36/2,270.60 = 539.20/x
  3. Step 3: Cross multiply
    1,513.36x = 2,270.60 × 539.20
  4. Step 4: Simplify right side
    1,513.36x = 1,224,307.52
  5. Step 5: Solve for x
    x = 1,224,307.52/1,513.36
  6. Step 6: Final answer
    x = 809.00

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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.