Home / 1,240.26-1,702.22-1,134.68

Finding the Fourth Proportional to 1,240.26, 1,702.22 and 1,134.68

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Solution

The fourth proportional to 1,240.26, 1,702.22 and 1,134.68 is: 1,557.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240.26 : 1,702.22 = 1,134.68 : x
  2. Step 2: Convert to fraction form
    1,240.26/1,702.22 = 1,134.68/x
  3. Step 3: Cross multiply
    1,240.26x = 1,702.22 × 1,134.68
  4. Step 4: Simplify right side
    1,240.26x = 1,931,460.81
  5. Step 5: Solve for x
    x = 1,931,460.81/1,240.26
  6. Step 6: Final answer
    x = 1,557.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.