Home / 1,270.08-1,756.28-1,159.92

Finding the Fourth Proportional to 1,270.08, 1,756.28 and 1,159.92

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Solution

The fourth proportional to 1,270.08, 1,756.28 and 1,159.92 is: 1,603.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270.08 : 1,756.28 = 1,159.92 : x
  2. Step 2: Convert to fraction form
    1,270.08/1,756.28 = 1,159.92/x
  3. Step 3: Cross multiply
    1,270.08x = 1,756.28 × 1,159.92
  4. Step 4: Simplify right side
    1,270.08x = 2,037,147.20
  5. Step 5: Solve for x
    x = 2,037,147.20/1,270.08
  6. Step 6: Final answer
    x = 1,603.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.