Home / 1,140.20-1,710.08-370.52

Finding the Fourth Proportional to 1,140.20, 1,710.08 and 370.52

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Solution

The fourth proportional to 1,140.20, 1,710.08 and 370.52 is: 555.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140.20 : 1,710.08 = 370.52 : x
  2. Step 2: Convert to fraction form
    1,140.20/1,710.08 = 370.52/x
  3. Step 3: Cross multiply
    1,140.20x = 1,710.08 × 370.52
  4. Step 4: Simplify right side
    1,140.20x = 633,618.84
  5. Step 5: Solve for x
    x = 633,618.84/1,140.20
  6. Step 6: Final answer
    x = 555.71

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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.