Home / 1,946.76-2,688.02-1,284.55

Finding the Fourth Proportional to 1,946.76, 2,688.02 and 1,284.55

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Solution

The fourth proportional to 1,946.76, 2,688.02 and 1,284.55 is: 1,773.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,946.76 : 2,688.02 = 1,284.55 : x
  2. Step 2: Convert to fraction form
    1,946.76/2,688.02 = 1,284.55/x
  3. Step 3: Cross multiply
    1,946.76x = 2,688.02 × 1,284.55
  4. Step 4: Simplify right side
    1,946.76x = 3,452,896.09
  5. Step 5: Solve for x
    x = 3,452,896.09/1,946.76
  6. Step 6: Final answer
    x = 1,773.66

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Double scale
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1.5x scale

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.