Home / 1,140.11-1,710.26-835.74

Finding the Fourth Proportional to 1,140.11, 1,710.26 and 835.74

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Solution

The fourth proportional to 1,140.11, 1,710.26 and 835.74 is: 1,253.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140.11 : 1,710.26 = 835.74 : x
  2. Step 2: Convert to fraction form
    1,140.11/1,710.26 = 835.74/x
  3. Step 3: Cross multiply
    1,140.11x = 1,710.26 × 835.74
  4. Step 4: Simplify right side
    1,140.11x = 1,429,328.51
  5. Step 5: Solve for x
    x = 1,429,328.51/1,140.11
  6. Step 6: Final answer
    x = 1,253.68

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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.